Enhancement request: automatic polyphony in TabStaff/DrumStaff context

[Marc Hohl]

> I am not top-posting.

<< ... \\ ... >>, implicitly creates Voice contexts,
even in TabStaff contexts, so the following snippet
creates automatically two new Voices:

\version "2.13.3"

poly = \relative c' {
 << {c1} \\ {a4 g f e} >> a1
}

\score {
  \new TabStaff = "guitar tab" { \poly }
}

It would be very useful to enhance the automatic polyphony
so that it would take care of the context in which it is called.

A similar problem existis in \DrumStaff contexts, see

http://lilypond.org/doc/v2.13/Documentation/user/lilypond/Common-notation-for-percussion#Percussion-staves


Marc