Good online documentaries about music...

possibly Syd tha Kyd?

Syd Straw?

You have to sign up for Night Flight to watch this, but they have some good stuff, might not be too bad (haven't checked for any prices)

Fugazi - Instrument (1999)
Instrument is a collaboration between filmmaker Jem Cohen and Fugazi, covering the period of 1987-1996. Far from a traditional documentary, this is a musical document; a portrait of musicians at work.

The project mixes sync-sound, 16mm. Super-8 video and a wide range of archival formats, including concert footage, studio sessions practice, touring, interviews and portraits of audience members from around the country. (Special thanks to our friends at Dischord for tonight's new arrival).

"...a beguiling, mesmerizing film, because it never settles on a straightforward path. It creates a portrait of the band without revealing the whole picture." — Kyle Ryan, The AV Club

Sorry! Link to Night Flight is in here:
https://mailchi.mp/nightflight/fugaziinstrument?e=42851f1305

Only tangentially music, but I watched this Milton Glaser (famous Dylan poster, various album covers) documentary off YouTube last night:

https://www.youtube.com/watch?v=jZ1YHqgZzGQ

This is so great -

https://www.youtube.com/watch?v=UO4N_wgbl-o

I have no idea who Miller miller miller and sloan are but watched the first 10 minutes and the music sounds fantastic and the documentary interesting.

https://www.youtube.com/watch?v=bWP_fmRnDEc

The Death (band) documentary^

https://www.youtube.com/watch?v=RLvCp7zqzxs

I have no idea who Miller miller miller and sloan are but watched the first 10 minutes and the music sounds fantastic and the documentary interesting.

I actually saw a bit of that - also didn't know who they were before, but one of those guys went on to build a pretty good career as an engineer. (He even worked on 3 Feet High and Rising.)