Support for double octave clefs?

[chrisspen]

Is there a way to denote a double octave clef, like clef=treble-16 or clef=treble-88?

I tried K:F clef=treble-8 transpose=-12 but abcjs only respects the treble-8 portion and seems to silently ignore the transpose statement.

[chrisspen]

Testing out a few more options, I found that:

K:F clef=treble transpose=-24

works. Although it doesn't display any indication that the piece is transposed down two octaves. But more my purposes, which is doing note detection on a microphone, this is a good workaround.

[seisiuneer]

Yes, that's a reasonable solution.

I've found that you can do:

X: 1
T: The Kesh
C: Traditional
R: Jig
M: 6/8
L: 1/8
Q: 3/8=120
K: Gmaj clef=treble-8
|:[I:MIDI=transpose -24]"G"GAG GAB|"D"ABA ABd|"G"edd gdd|"C"edB "D"dBA|

But the MIDI transpose has to be actually after an initial barline or it doesn't get picked up.

This works as well, adding a single V:1

X: 1
T: The Kesh
C: Traditional
R: Jig
M: 6/8
L: 1/8
Q: 3/8=120
K: Gmaj clef=treble-8
V:1
%%MIDI transpose -24
|:"G"GAG GAB|"D"ABA ABd|"G"edd gdd|"C"edB "D"dBA|

[paulrosen]

You're right that there isn't a double treble-8 option.

I'd be curious about your note detection app. Is it open source? I've played around with that but don't have a great solution.

[chrisspen]

@paulrosen I haven't open source the entire web app, no, but I did open source the polyphonic pitch detector. It's main limitation is that it requires a list of notes to check for, but for my use case, that's fine.

https://gitlab.com/chrisspen/poly-peach