Haiku could theoretically fill a niche for music production workflows. Ultra tight MIDI timing and sequencing, low-latency audio and a beautiful desktop. I hope this dream comes true eventually.
I worked on a Elektron MachineDrum firmware fix that corrected the MIDI jittering due to incorrect ISR configuration. MD itself is pretty tight already with its RTOS but the fix brought it down to microseconds. I was pretty proud of it because it solves a few phasing problems.
I then turned this over to a friend running a lot of Elektron boxes, and his reaction was, "you mean the sound we've got is wrong? how strange!"
So while I feel the same urge to have ultra tight MIDI timing, I doubt this would be a general interest of the non-technical musicians out there.
[0] https://www.tunetrackersystems.com/
[1] https://rbr.com/tunetracker-ditches-beos-haiku-for-mac-backb...