strange behaviour of \transpose

[Martin Cassell]

Perhaps as a newcomer I'm missing something, but this looks like a bug to me:

I was experimenting with a .ly file produced by musiccvt, in which a vocal line
with a treble-8 clef had been pitched an octave too high (leger lines that would
frighten a countertenor, let alone a baritone!).

>From the documentation, the solution seemed straightforward: 

    \transpose a' a { ... }     % or similar

The outcome was unexpected: first note unchanged, remainder transposed down by
two octaves.

Speculatively, I tried a variation:

    \transpose a a { ... }   % shouldn't this leave the pitch unchanged?

The outcome was, at least, consistent with my first attempt: first note raised
by an octave, remainder lowered by an octave.


/mpc