Extend "Completion_heads_engraver" to drums?

[Xavier Scheuer]

Hi (again),

We faced a request on lilypond-user-fr that I'm relaying here.

Somebody asked the possibility to use "Automatic note splitting"
in a DrumVoice, which is not possible presentely because
"Completion_heads_engraver" does not apply in \drummode .

Could you extend "Completion_heads_engraver" to drums, or maybe better
create a "Completion_heads_engraver"-like that, when replacing
"Drum_notes_engraver", would convert automatically long (drum) notes to
tied notes?
Maybe something like "Completion_drum_heads_engraver".

Thanks in advance,
Xavier

--
Xavier Scheuer <address@hidden>