Keep subbeaming intact. So subgroups of two can always be identified easily.

received 8th: d32[ g d g] d32[ g d g]
received 16th: d32[[ g] d[ g]] d32[[ g] d[ g]]
desired result: d32[[[ g] d[ g]] d32[[ g] d[ g]]]

Midi support for drumming would be really cool.

This needs a macro to switch sound (Bass, Tenor1, Tenor2, Side).

Also, sides have rolls which have to be implemented somehow.(no idea yet for this)

Please add a software license so that I can fork this repository. I'd like to turn it into a lyp package.

In pipemusic a lot of repetition occurs, especially "part 2 of 4" is common.
Having such a command would be really nice to have.

Snippet from a score:

Hello,

Thank you for this wonderful package. I am not sure if you are still actively maintaining it or not.

When a tuplet begins \flam gN the tuplet bracket and number are displayed at an angle:

This does not happen if the flam is \flam dN(lR) and it only happens when the flam is at the beginning of the tuplet. It does not seem to matter where in the bar the tuplet occurs.

Here is a test case:

\version "2.20.0"
\include "includes/lilydrum-master/lilydrum.ly"

\score {
  \new PipeBandDrumStaff {
    \drummode {
      \time 2/4
      \tuplet 5/4 {
        \flam g16 d16 g16 d16 g16
      } d4 |
    }
  }
}

If a normally beamed note comes before a drag, they have a flag instead of a beam
This can be fixed by explicit beaming, but I'd rather have a good autobeaming for this.

Note that this is not an issue for flams.

\include "lilydrum.ly"

\new PipeBandDrumStaff {
  \drummode {
    d8 \flam d  g8 \flam g  d8 \drag d  g8 \drag g |
  }
}

It can be temp-fixed with explicit beaming:

\include "lilydrum.ly"

\new PipeBandDrumStaff {
  \drummode {
    d8 \flam d  g8 \flam g  d8[ \drag d g8 \drag g] |
  }
}

It's customary to have 4 bars per line for portrait and 8 for landscape...

Most of the time can this be accomplished by \break-ing every 8 measures and having enough notes in. However, it would clear the code if there was an external command for this.

I know a rimshot symbol as a normal note with either a slash or cross through it.
This symbol is still missing.

Instead of a horizontal grouping, an arrow (going up and down) should be over the notes.

The tutti macro needs a switch to open the ending (to implicitly indicate to continue the tutti).

Maybe the same mechanism can be used to create an open start, though not yet needed.

The tutti macro can not be used on one note.

Not really something that should be in this package, but a function that detects whether the current environment is in a \repeat volta (or instead in a \repeat unfold) would be really cool to have.

This could allow music to transform itself depending on the context.

Currently a tuplet beginning with a flam has a strange tuplet beam (slanted)
This can be fixed by putting the flam outside of the tuplet ..
However the autohand function doesn't work this way yet

The autohand function should search across the SequentialMusic to find the first note and check on that note which hand it is.
(Perhaps we need a default for this aswell if not right or left hand)

Trying to compile the cheatsheet.ly file with Lilypond GNU LilyPond 2.19.37 fails:

$ lilypond -V cheatsheet.ly
...
...
...
GPL Ghostscript 9.15 (2014-09-22)
Copyright (C) 2014 Artifex Software, Inc.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Error: /undefined in closedpoint
Operand stack:
   0   0   0   0
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1951   1   3   %oparray_pop   1950   1   3   %oparray_pop   1934   1   3   %oparray_pop   1820   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--
Dictionary stack:
   --dict:1183/1684(ro)(G)--   --dict:0/20(G)--   --dict:119/200(L)--
Current allocation mode is local
Last OS error: Invalid argument
Current file position is 583295
GPL Ghostscript 9.15: Unrecoverable error, exit code 1
warning: `(gs -dSAFER -dDEVICEWIDTHPOINTS=595.28 -dDEVICEHEIGHTPOINTS=841.89 -dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH -r1200 -sDEVICE=pdfwrite -sOutputFile=cheatsheet.pdf -c.setpdfwrite -f/var/folders/tz/jxcv5s0j091dfpxl3qbvpnf40000gn/T//lilypond-FB96M1)' failed (256)

fatal error: failed files: "/tmp/lyp/wrappers/cheatsheet.ly"

I pinpointed the problem to the \rthrow and \lthrow articulations on line 72

BTW, your code is forked as a lyp package here.

might be handy. Oh, this is also a hello world thingy

When repeats are unfolded tutti's show up in the second time through.
Most of the time the second time through all bars are played in unison.
Having a tag in \tutti, we can reuse an expression while turning off a unison.

It could work by using simultaneous music.
Right now I can do the following to attain something like this:

<<
    \tag #'tutti { \tutti { s4 s4 s4 } }
    { d8 g d8 g d4 }
>>

then use \removeWithTag #'tutti to remove the unison bracket.

For this to work, a function is needed to get enough spacer notes. Either by calculating the total length or replacing all notes with spacer notes