Hello,
traditionally[1][2] in vocal music beaming corresponds to melismata: if
multiple notes are sung to one syllable, they are beamed according to
normal rules [3], else no beams are used. Currently this is achieved
through \autoBeamOff and manual beams in melismata, but this feels
clumsy (apart from being a little tedious) and mixes some presentation
aspect into content. I imagine that it wouldn’t be so difficult to do
this automatically: Like with lyrics, the beaming procedure might listen
to whether a melisma is active. If yes, beam the notes, if no, don’t.
Suggested syntax would be to complement the boolean
\set autoBeaming ##t resp. \autoBeamOn
\set autoBeaming ##f resp. \autoBeamOff
by a third option
\set autoBeaming #classic-vocal resp. \autoBeamVocal. (or #vocal?
\autoBeamClassicVocal? I’d be more precise with the former version and
more concise with the shortcut)
Best regards, Simon
[1] In more complex music sometimes beaming follows normal rules and
melismata are indicated exclusively through slurs and/or placement of
syllables.
[2] For examples see e.g. the Breitkopf&Härtel Complete Editions of
Bach, Brahms, Mendelssohn, Mozart (all on IMSLP), or the Peters editions
of Mendelssohn’s choral music. They differ in their use of slurs –
that’s where it gets controversial/individual.
[3] There are exceptions with longer beams, if they obsolete the slur,
but there’s nothing to be said about doing these manually (especially if
melismaBusyProperties includes beamMelismaBusy).
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