Re: vertical shift of trill

[Kieren MacMillan]

Hi Jim,

There are many ways to do this, but the easies would probably be to tweak the 
extra-offset:

\version "2.20.0"

\relative c'' {
  \clef treble
  <<
    {
      \pitchedTrill c'1~\startTrillSpan des c1*7/8 s8 \stopTrillSpan
    }
    \\
    {
      \pitchedTrill a1~ -\tweak TrillSpanner.extra-offset #'(0 . 3.5) 
\startTrillSpan bes a1*7/8 s8 \stopTrillSpan
    }
  >>
}

You might also want to use whiteout?

Hope that helps!
Kieren.