mdlbear: blue fractal bear with text "since 2002" (Default)
2025-03-30 09:36 pm
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Done Since 2025-03-23

Last week was physically quite uncomfortable for me; the problem has (mostly?) resolved this morning, thanks mainly to macrogol and senna. I also learned that constipation can cause back pain. On the other hand, I finally got the email from VGZ saying that I have health insurance. (I'm annoyed that it took so long; the fact that I am living in a house that I own should have given them a clue three months ago.)

There was music this week, starting with Leslie Hudson's Hemlock in the Honey tour playlist listening party (all American stops on the tour having been cancelled), and ending with this Star Wars Medley played on the Finnish Kantele, and, by the same performer -- Ida Elina -- the Evolution of Kantele (Finnish Harp). In between, N and I had a practice session. Which, among other things, finally got me off my arse about starting to bring the Kaleidofolk up to date, since one of the songs we worked on, "Life Cycle of Flowers", didn't have chords on the site. (I found the original, printed using an unknown program, in one of my notebooks.)

More music links below, mostly on Saturday. It's been a good week for rabbit holes.

Monday has quite a few good links about how to De-google-ify Internet. My favorite, though, has to be CHATONS. It's French (but easily switched to English or German), and stands for "Collectif des Hébergeurs Alternatifs, Transparents, Ouverts, Neutres et Solidaires". "Chatons" is French for "kittens". Honorable mention goes to a crowdfunding site called "KissKissBankBank".

Notes & links, as usual )

mdlbear: blue fractal bear with text "since 2002" (Default)
2024-06-09 11:56 am
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Done Since 2024-06-02

Not a bad week. Got a few things done. Not enough, though. It's never enough, and I seem to have an aversion to finishing things. WTF, brain? Health-wise I've sometimes been feeling vaguely "off", especially in the evening; don't know what's up with that.

I'm back to a qualified "okay" for mood, because of persistant worries. But I had a good hour or so with both cats in bed this morning, and a lot of good cat cuddle other times this week, and I'm not complaining. And I went for a walk five days this week. (Not nearly so good about my normal morning exercises. Bronx has a little to do with that — I always used to do the standing exercises in the bathroom, but Bronx + bathroom = havoc.)

I had a good talk with Jonathan, my oncology social worker, on Wednesday, mostly about music and emotions. Apparently even though I'm not very good at verbalizing my emotions when asked (cf. alexithymia), they sometimes come out in songs. Maybe that's because in songs I don't have to actually name them. Also maybe because I don't write songs very often. The songs in question deserve a full-on post — I'd planned on posting an s4s but got sidetracked. Maybe next week, although as I have often mentioned, I have the memory of a mayfly on crack. So maybe not.

According to LJ I've been writing this blog for 22 years as of Saturday. Of course all the posts, and the posting, have moved over here to DW, and LJ broke cross-posting. That's their problem.

And, Public Service Announcement: don’t install any version of Windows 11 that can run copilot/recall (via @solarbird; more links under Tuesday). Don't believe Microsoft when they say they've fixed it, or that it won't run on your down-rev PC. There's never been a better excuse to switch to Linux.

Notes & links, as usual )

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2024-05-25 04:03 pm
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Songs for Saturday: Grandeur

So the idea of "spirituality" has been in my mind, and to some extent in my journal, where I wrote "Is looking up at the night sky a spiritual practice?" I was remembering, in particular, the night N, Colleen and I came back to the house on Whidbey Island one night not too long after we'd bought the place -- the sky was spectacularly clear, and for a long while we all just looked up and got lost in the depths of it.

Songs came up in my discussion with EG yesterday, in a somewhat different context, and afterward I thought about what songs inspire the kind of awe and grandeur that those stars did.

The first song I thought of was Don Simpson's Ship of Stone. The second was Dave Carter's When I Go. The third was also by Dave Carter -- Lord of the Buffalo. Which I haven't done as a s4s, so I'll just link to Tracy Grammer's cover of it.

(You can also find considerably rougher versions by Kaleidofolk at Or-E-Con 2, 2022 and Lookingglass Folk at Conflikt 2012. Not necessarily recommended unless you're a completist.)

mdlbear: "Sometimes it's better to light a flamethrower than to curse the darkness" - Terry Pratchett (flamethrower)
2024-05-04 12:47 pm
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Songs for Saturday: Ohio

"Ohio" as performed by the Kent State University Chorale - YouTube (Via Cat Faber on FB)

(Jul 29, 2020) In remembrance of the 50th anniversary of the events of May 4, 1970, and the release of the song, "Ohio:, the Kent State University Chorale performs a very special acapella version of "Ohio." this version was requested by, and approved by Neil Young.

Also, Ohio - Neil Young CSN&Y 2017 remix. Neil Young - Ohio (Official Live Video)

Kent State shootings -- 54 years ago today.

lyrics, if you don't want to click through: )

mdlbear: The international radiation warning symbol, a black trefoil on yellow (radiation)
2024-04-20 05:13 pm
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Songs for Saturday: Rabbit Holes and Ray Cats

Radiation therapy can lead one down some pretty weird rabbit-holes. I was rummaging around trying to find out why treatment dosage is measured in cGray. Why 1/100 of a Gray? (I note in passing that a Gray is 0ne joule per kilogram.) Well, it turns out that the outdated CGS unit of radiation dosage was the Rad, equal to 100 ergs per gram, and it's equal to 0.01Gy. So the field of radiation therapy goes back a long way, and everyone was used to using rads, so they just kept the numbers and renamed the unit. Besides, it means nobody has to worry about where to put the decimal point -- my prescription, which is fairly typical, is 7000cGy spread over 28 individual 250cGy zaps.

One thing leads to another, so I followed things like radiation poisoning, radioactive waste, and a Timeline of the far future, which somehow wound up at Ray cats. To quote the article,

A ray cat[a] is a proposed kind of cat that would be genetically engineered to change appearance in the presence of nuclear radiation. Philosophers Françoise Bastide and Paolo Fabbri originated the idea of a "living radiation detector"[1] in 1984 as a proposed long-time nuclear waste warning message that could be understood 10,000 years in the future...

But how do you ensure that people ten millennia in the future will know why their cats suddenly changed color, and what to do about it? Well, you could make a nursery rhyme about it, and give it a really catchy tune,... The result is titled "10,000-Year Earworm to Discourage Settlement Near Nuclear Waste Repositories (Don't Change Color, Kitty)". I'm not sure it's catchy enough to do the job, but it is pretty catchy.

See also, Raycats and earworms: How scientists are using colour-changing cats and nursery rhymes to warn future generations of nuclear danger - CityAM, The Cat Went Over Radioactive Mountain | Method, and the podcast Ten Thousand Years - Episode 114 of 99% Invisible (which has the song in it).

...

To change the subject almost completely, but still sort of related, the folks giving radiation treatments at the UW medical center provide background music via Spotify (to keep you from being bored during the prep and treatment, which takes some 20 minutes on a good day.) Naturally I told them to search Spotify for "filk".

The treatment only runs for the last few minutes; the rest is the techs adjusting your position and orientation so that the markers in your prostate line up within a millimeter or so of where they were the last time. So they were still in the room when Paper Pings came on and I was able to say, as calmly as I could, "I wrote that."

lyrics, if you don't want to click through: )

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2024-03-30 07:29 pm
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Songs for Saturday: The Last Train, and others

So,... Monday evening N was looking for train songs, to put in Thursday's GoingSideways.blog post, Colorado and the Midwest. Just about the first one that came to mind was "The Last Train" (lyrics here) by Janis Ian. So of course I had to go listen to it again, because I love it. It made me cry.

I don't know why -- it always surprises me when I come across another trigger. But I'm not complaining. I don't cry enough.

For a total change of mood, gorgeousgary's comment on my signal boost post pointed me at "Roll On Jamaica/Agnes on the Cowcatcher" from the Canadian band Tanglefoot (lyrics on mudcat.org). It's based on an actual historical incident.

Then acelightning73 added half a dozen more.

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2023-12-09 02:53 pm
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Songs for Saturday: Listen to Wikipedia

Well, music-adjacent, anyway. Hatnote Listen to Wikipedia is an audio-visual rendering of the Wikipedia edit stream. Scroll down for more information. (This page has more detail.)

Bells indicate additions and string plucks indicate subtractions. Pitch changes according to the size of the edit; the larger the edit, the deeper the note. Green circles show edits from unregistered contributors, and purple circles mark edits performed by automated bots. You may see announcements for new users as they join the site, punctuated by a string swell.

Note: when you follow the link to the page, you won't hear anything -- it's muted. To unmute it, click on the volume-control slider in the upper right of the header (to the left of the "about" link -- it has rather low-contrast). Click close to it's left-hand (quite) end and adjust the volume from there.

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2023-10-21 05:21 pm
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Songs for Saturday: Everybody's Moon

My personal soundtrack/earworm for the last week or two has been "Everybody's Moon" by Howard Kranz. I first heard it from Kathy Mar; it's on her album My Favorite Sings : Kathy Mar: Digital Music.

Lyrics at http://howardkranz.com/lyrics/ev'smoon.htm.

or here, if you don't want to click through: )

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2023-05-13 06:54 pm
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Songs for Saturday: The Songs of Pando

If you've been reading this blog for a while you may have noticed that Songs for Saturday, in addition to having a highly irregular schedule (only 102 entries since I started the tag in 2011), occasionally strays away from the usual run of music-with-vocals that most people consider "songs". But I don't think I've ever strayed quite this far, though that's only because I haven't tagged whale songs or the chirp and ringdown of colliding black holes. Let me fix that.

So with a tip of the hat to ysabetwordsmith, here is The Sweet Song Of The Pando, The Largest Tree On Earth. (Ysabet actually pointed to this NPR article: Eavesdropping on Pando, one of the largest trees in the world. Pando is an aspen clone, spreading over more than 100 acres (43 hectares), with 47,000 tree-like stems growing from a single root system.

I'll get to black holes and whales eventually.

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2023-05-06 02:23 pm
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Songs for Saturday: The Flowers of Bermuda

For the last several days, my "earworm of..." (it wouldn't be "choice", would it? It chose me) has been Stan Rogers' shipwreck song "The Flowers of Bermuda". Since it's Saturday, and I didn't have anything else planned, here you go -- "The Flowers of Bermuda - YouTube" [Lyrics on mudcat.org].

For background, see this excellent article in 'How Legends Are Made: Stan Rogers, “The Flowers of Bermuda,” and Air Canada Flight 797' in Sing Out!. Note: the "Continue to page N" links are broken -- use the little numbered links on the next line. Or if you're lazy,

Page 1, page 2, page 3, page 4, page 5.

lyrics (copied from Mudcat), if you don't want to click through: )

I may have to learn the chords for it now. And maybe hear something else in my head when I'm trying to sleep?

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2023-03-11 02:47 pm
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Songs for Saturday: Singing in the dark

So, earlier in the week I linked to a song, Children Of Darkness by Richard Fariña (as sung with his wife Mimi) -- you'll find the lyrics under the cut, as well as at the link.

Here's another version, sung by Mimi's sister, Joan Baez. Not sure how I feel about the orchestration, but...

I like both versions, but with a preference for the Fariñas'. It's a weird little song, but it fits my mood and the times. Unfortunately. I'd much rather sing cheerful songs in happy times, but that isn't what's happening right now. Another song that's been in my mind lately is Bob Dylan's Desolation Row. Same kind of thing. When things are bad I want a song that resonates with the mood rather than fighting it. (That's related to the standard advice for talking to someone who's depressed or grieving. And the joke that goes: They told me, cheer up -- things could be worse. So I cheered up, and sure enough, things got worse.)

lyrics, if you don't want to click through: )

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2023-02-18 07:28 pm
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Songs for Saturday: Black Tie, by Grace Petrie

If you're non-binary, trans, or any other kind of [insert favorite gender-nonconforming alphabet soup here], or know someone who is, this video is for you: Grace Petrie - "Black Tie" (Official video) - YouTube It's upbeat, hopeful, encouraging, and I think just about the right amount of angry.

"Black Tie" by Grace Petrie 2018

Well, it's a jungle out there The year 2018, I didn't think We'd still be sorting babies into blue and pink And all our progress Well, I wonder what it means That the only girls' clothes that work for me Turn out to be boyfriend jeans Well, that's fine 'Cause I decline A narrow set of rules that just don't work 'Cause these red lines They're not mine And if you need me you can find me ironing my shirt 'Cause I'm in black tie tonight Get a postcard to my Year 11 self In a Year 11 hell Saying everything's gonna be alright No, you won't grow out of it You will find clothes that fit And the images that fucked ya Were a patriarchal structure And you never will surrender To a narrow view of gender And I swear there'll come a day When you won't worry what they say On the labels, on the doors You will figure out what's yours And it's a bloody nightmare Trying to fight the spread of bigotry and fear That's uniting Piers Morgan and Germaine Greer And all our progress Yeah, I wonder who it's for When I dared to utter that trans lives matter, yeah And all I got was a TERF war You will figure out what's yours And that it's got Nothing to do with fitting neatly in a box That was constructed to make it seem Like people come in just two teams And anything that's in between ain't good enough And you will love And you'll be loved No, you never will surrender To that narrow view of gender And there's folks you've yet to meet But you're exactly up their street And they've been waiting just as long To hear someone sing this song And better days are one their way When it won't matter what they say On the labels, on the doors You will figure out what's yours And girl, you're gonna be so happy And girl, you're gonna be just fine And girl, you're gonna be so happy Down the line, down the line

From a locked post, with a tip of the hat to @L, who can identify themself if they want to.

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2022-12-11 06:35 pm
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S4S: Songs for... Sunday?

Since I got confused and ran this week's "Done Since..." post yesterday, I think I'll overcompensate and post an "s4s" post as "Songs for Sunday". (It wouldn't be the first time for either of those, although it may well be the first time I've done both in the same week.) And besides, this isn't really about songs.

Anyway, this week's rabbit hole started with an article on Aeon.co called either "The pharaoh’s trumpet", or "What King Tut's treasures reveal about daily life in ancient Egypt", depending on whether you look at the page's H1 tag or its title. In any case, last Sunday was the 100th anniversary of the discovery of Tutankhamun's tomb. Among the lesser treasures there were a pair of trumpets, one made of gilded bronze, and one of silver. The article embeds a video, Tutankhamun's Trumpets played after 3000+ Years. I'll wait while you go and listen.

Which led me to Wikipedia, to find out why they were called "trumpets rather than bugles. There, I learned that "bugle" typically refers to the military signaling device, which is limited to the five notes of the "bugle scale", corresponding to the second, third, fourth, fifth, and sixth harmonics of the horn's fundamental. In the key of C these would be C, G, C, E, and G. You'll note that the 2nd and 4th harmonics are an octave apart, as are the 3rd and 6th.

That led me to the Natural trumpet, on which by going up to the 16th harmonic a skilled player can play an entire chromatic scale by bending, or "lipping", the 7th, 11th, 13th, and 14th harmonics to bring them into tune. Modern trumpets and other brass instruments use valves, of course, which side-tracked me for a while into looking up the difference between piston and rotary valves.

From there I started getting into the difference between "just intonation", which uses pure whole-number ratios, Pythagorean tuning, and the modern equal temperament system, which divides the octave into 12 equal semitones with a ratio of 2-12 (the 12th root of 2) between them. Just temperament is used primarily by a capella groups and string quartets.

After that I started getting into modes, diatonic (and other) scales, and some of the more arcane places music theory has gone in the last hundred years or so. I think things beyond that point are mostly of interest to academic music theorists -- mathematicians and physicists got off this bus around the harmonic series.

mdlbear: blue fractal bear with text "since 2002" (Default)
2022-11-09 09:16 pm
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Music: Sunday's Concert -- Now with Audio

It took all afternoon, but I finally have the concert page for Sunday's Kaleidofolk concert at Or-E-Con 2, 2022. Turns out it's been a while since I did that, and many of my software tools have gotten rusty. Some of the websites have mold growing on them, so to speak.

Anyway, go look and listen. Be aware that this is a group performing for the first time, and that my guitar and singing skills have also gotten rather rusty. There's a cringeworthy flub in the first song -- you may want to start with track 2 -- and I still don't have the mix where I'd like it. (Which, considering everything, may well be an impossible goal.) There should probably be audio for the introductions, too.

mdlbear: (audacity)
2022-11-07 09:00 pm
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Music: OrECon concert tech

Yesterday's concert involved a lot of firsts, and not nearly enough preliminary testing; I was impressed if I get a recording that's as much as halfway decent. I'd hoped to have audio to post today, but that's not going to happen. Maybe tomorrow.

This was the band's first Zoom concert, and the first concert where I used the Allen & Heath ZEDi-10 mixer/USB interface. Results were mixed. And, fortunately, also unmixed. Because I got two sets of recordings. Let me back up a bit.

Note: the rest of this post can safely be skipped if you're not interested in home recording.

The A&H (henceforth "mixer") outputs four channels of audio over USB (Linux spuriously exposes the first channel as stereo -- weird) and has both balanced XLR outputs for the main mix, and unbalanced RCA outputs for the monitors and headphones. Since Zoom only supports two channels, I ran the main mix from the XLR outputs into my old Edirol UA-25 interface. The UA-25 has both balanced and unbalanced outputs -- I ran the outputs to my old pair of studio monitors, which I set up so that we could all hear the other side of the zoom meeting.

On a second laptop (Panther, which normally lives in my studio EDU) I set up Audacity to record the four channels of USB audio from the mixer. The default is for these to be the four microphone inputs, and by a happy non-coincidence we had four microphones set up: for me, Naomi, Magpie, and (guitar) Plink. N and m had various percussion instruments, which were not separately mic'ed. I ran the mixer's monitor outputs (set up to mirror the main mix) into the little hardware!Zoom (no relation to the video conferencing software!Zoom) H2 that I use for recording concerts.

We had determined during our rehearsal on Saturday that when you record a meeting using software!Zoom you get 32kHz mono. Yuck! We also re-arranged the living room so that we were all facing the monitors (both the speakers and the LCD) instead of clustered around the keyboard. This made a horrible tangle out of the cables, but fortunately I'd used velcro strips to color-code them, so untangling them this evening was comparatively easy.

The recording of the mix from the H2 ended up being pretty noisy, with a noticable amount of hum, poor balance on a couple of songs, and a few bad noise spikes that I wasted a lot of time this afternoon trying to fix. A lot of the noise was probably due to the crappy cable I used. I'd considered running Audacity on same machine that was running software!Zoom, but I hadn't tested that configuration and didn't trust it.

The 4-channel direct recording is much cleaner, (there were noise spikes, but all in the intros rather than the songs -- weird) but since I decided to work with the 2-channel version first, you'll have to wait until tomorrow (or later) to hear something decent enough to publish.

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2022-11-06 09:04 pm
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Songs for Sunday: Set List for Today's Concert

Set list, with intros. Audio later this week after I get the recordings processed.

  1. Riverheart (by Naomi Rivkis, introduced by Naomi)
    One morning, a decade or so ago, I woke up with the remains of a very strange dream in my head. It involved a man named Zeb, a miner in the Black Hills gold rush, who had fallen in love with a river… and there were two lines of verse so clear and precise that I had to look them up on the Internet to make sure that I wasn’t remembering them from somewhere. Since it turned out that I wasn’t, I set about writing the rest of Zeb’s story. It’s called Riverheart.
  2. Ship of Stone (by Don Simpson, introduced by Steve)
    I fell in love with this song the first time I heard it, and I’ve often told people that I think it’s the best filk song ever written. It finally won the Pegasus it deserves, in 2019. This is Don Simpson’s Ship of Stone.
  3. Inherit the Earth (introduced by Steve)
    A decade or so ago – I heard Naomi sing “Riverheart” and told her that I wanted to add it to our repertoire. She was skeptical, because she’d only heard me sing quiet songs. She asked whether I thought I could sing with enough “bite” for “Riverheart”. This was my answer.
  4. Rambling Silver Rose (introduced by Steve)
    When I wrote this next song I was thinking of Cindy McQuillin’s songs of spaceships, spaceport bars, and hard-drinking, independent-minded women. Also, the name Colleen and I thought up for her new mini-van, Rambling Silver Rose.
  5. Lock Keeper (by Stan Rogers, introduced by Naomi)
    Way back in the 1980s, I heard an Australian performer cover a song by a Canadian folk singer whose name meant nothing to me at the time. Fortunately, it wasn’t very long before I learned all about Stan Rogers, and of course lots of his songs are performed all over the place… but I still don’t often hear that first one I ran into. So we do it. This is Lockkeeper
  6. Lord of the Buffalo (By Dave Carter, introduced by Magpie)
    This is one of the songs I grew up on – the kind you hear so often as a child that you could hum it in your sleep, but barely remember the lyrics. It’s also the kind of song that always makes me want to stomp my feet, and possibly fight something. I think that probably explains a lot about what I was like as a kid. This is Lord of the Buffalo.
  7. Bells of Norwich (By Sidney Carter, introduced by Naomi)
    One of my favorite heroes was a woman who saw her country devastated by civil war and the Black Plague, who lived in sickness and isolation for most of her life, and who still taught her entire world that love and joy yet exist, and always will. We don’t know her real name, but she’s commonly called Julian of Norwich, after the church where she lived in a cell in the wall. This is her song.

We had Eyes lie the Mornng prepared as an encore, but didn't have time for it. As it was we ran over by a minute or two.

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2022-11-05 10:01 pm
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Songs for Saturday: will be Songs for Sunday this week

Kaleidofolk had a good rehearsal this afternoon -- I finally got most of the tech to cooperate. But it turned out that the recording I got off of Zoom was 32kHz mono. I can see why they'd want to do that, but grump anyway. I will try several other things tomorrow morning. The concert's at 2:30.

Anyway, the real s4s post this week will be "Songs for Sunday", tomorrow.

mdlbear: blue fractal bear with text "since 2002" (Default)
2022-10-30 02:19 pm
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Done Since 2022-10-23

A fairly busy week. There's nothing like a busy week to remind myself of how much I'm not doing. In any case, I think we're ready for next week's concert at Or-E-con2 (2:30 Pacific time).

Most of my attention (and worry) has been going into concert prep -- with three people performing together live on Zoom we need a mixer, four microphones (one on Plink), mic stands, cables, monitor speakers, a webcam,... Many of those are new, so it's a been learning experience.

The week also included a visit from an old family friend, and zoom conversations with my brother and the executor of Mom's estate. I have not been taking part in online filk events, and I'm not entirely sure why, but in any case next weekend will be my opportunity to get back into it. Whether I follow up on that is anybody's guess -- I'm not very good at that.

I also had a second PT appointment Monday. I think, maybe, the exercises are helping, but it's probably too early in the process to tell.

Notes & links, as usual )

mdlbear: portrait of me holding a guitar, by Kelly Freas (freas)
2022-09-03 10:37 am
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mdlbear: blue fractal bear with text "since 2002" (Default)
2022-07-24 03:19 pm
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Done Since 2022-07-17

I have been down at Rest Stop since last Sunday afternoon. I'd been hoping to get in some practice time with m, but that didn't work out. So I did a little guitar and singing practice on my own -- not nearly enough, but I'm trying to get my finger calluses back in shape. Getting there, but feeling very discouraged over how little music I've done in the last few years. So I've been filling in some of the time listening to Talis Kimberley on YouTube, and the rest of it hanging out in the 4th, 8th, and 24th dimensions. Mostly the 8th, with the octonions and the E8 lattice, and the 24th, with the Leech lattice.

The Leech Lattice has nothing at all to do with blood-sucking invertebrates (a category which also includes many politicians), but it is definitely a time-sucker. I was also going to say that the E8 lattice has no connection to The Adventures of Buckaroo Banzai Across the 8th Dimension, but it turns out that there is (a rather tenuous) one. Which is absolutely mind-boggling.

Some day I may write a post about why I find this stuff mind-bogglingly beautiful even though I don't know nearly enough about group theory, string theory, geometry, particle physics, elliptic curves, or modular forms to be able to follow the math. You can get a lot of it from this lecture by John Baez (who happens to be Joan Baez's cousin). Many of the bizarre mathematical connections come from the fact that if you add up the squares of the numbers from 1 to 24, you get a perfect square. Which is why the Leech lattice is the best way to pack spheres in 24 dimensions.

The Leech lattice is also related to the Binary Golay code, which brings up all sorts of other connections because Marcel Golay also collaborated with my father on the Savitzky–Golay filter, in an article that marked "the dawn of the computer-controlled analytical instrument". Dad would have been fascinated by all this.

All of which has been incredibly addicting and has kept my mind (mostly) off my worries about the state of my health and the deplorable state of US politics.

I'll leave you with last Sunday's quote of the day:

c: I should know where my checkbook is.
me: Put it next to your towel.

Notes & links, as usual )

ETA: Bathsheba Sculpture - E8 I might just need one of these. only $60