In order to exclude some notes from the ambitus range calculation, I use \voiceOne and \voiceTwo, putting the excluded notes in \voiceTwo and putting spacer rests in \voiceOne. This works, but I want to prevent most of the multiple voice placement adjustments from happening. I was able to get normal stem direction with a \stemNeutral command on \voiceTwo, but I'm not sure how to get rests positioned as they would in a single voice context. It would be nice if there were a way to say "if all but one voice has spacer rests over this span, engrave that voice as if it was the only voice".
On Fri, Dec 12, 2025 at 10:24 AM Eric Benson <[email protected]> wrote: > Zero response from the list, but for the record I was able to do both of > these things. I made my own copy of the Scheme ambitus-engraver code and > put a couple of ly:message calls in to print the notes into the progress > output, and I was able to mark certain notes as not counting in the ambitus > calculation just by putting them inside a \new Voice. > > On Mon, Dec 8, 2025 at 12:37 PM Eric Benson <[email protected]> wrote: > >> I have a bunch of sheets that I'm transposing on demand for specific >> instrument or voice ranges. For that purpose I need to build a database >> with the melody range of each sheet, so I can tell if it fits in the target >> range of the transposition. I've been trying to figure out how to piggyback >> on the ambitus functionality, which extracts the range and adds it at the >> very beginning of the output, before or right after the clef. Instead of >> putting it in the output, I'd like to just print something out that >> specifies the low note and the high note in LilyPond absolute format, e.g. >> >> Low note: c' >> High note: a'' >> >> I don't think this will be too difficult, especially since I can probably >> modify the Scheme version of ambitus-engraver that's included with >> documentation, to print something on the terminal output instead of >> engraving it in the sheet. >> >> However, I would also like to mark certain notes in the input as not >> being included in this calculation. Sometimes there are snippets of >> accompaniment that are in the same staff, but don't count in the melody >> range. I want these notes to be engraved as usual, but I want to mark them >> with a property that I can query in order to exclude them from the range. >> I'm hoping this could be something simple to add to the input files, so >> that a sequence of notes could be bracketed with a command to indicate that >> they don't count in the melody range. >> >> Any and all advice is welcome! >> >
