Re: Switching on/off instrument staff

[Víctor]

Also, I don't know if it makes a difference to you (it appears the output doesn't change), but I'd move your Dynamic section more explicitly in-between the two piano staves. I think it just makes the code a little cleaner. Like this:

\new PianoStaff <<

  \new Staff ...

  \new Dynamics ...

  \new Staff ...

>>

Oh, and you don't need to explicitly create a \new Voice anymore in the upper piano Staff if you do that. Just a small suggestion.

- Abraham

Thanks for the suggestion, it is indeed a cleaner way. Now that I'll redefine the \score, I'll do it this way. Thanks again.
Víctor