@cindex beams, cross-staff
@funindex \change
-@funindex change
Voices can be switched between staves manually, using the command
@cindex staff changes, automatic
@funindex \autochange
-@funindex autochange
@funindex PianoStaff
Voices can be made to switch automatically between the top and the
@cindex autochange and relative music
@funindex \relative
-@funindex relative
A @code{\relative} section that is outside of @code{\autochange}
has no effect on the pitches of the music, so if necessary, put
@funindex followVoice
@funindex \showStaffSwitch
-@funindex showStaffSwitch
@funindex \hideStaffSwitch
-@funindex hideStaffSwitch
Whenever a voice switches to another staff, a line connecting the
notes can be printed automatically:
@cindex U.C.
@funindex \sustainOn
-@funindex sustainOn
@funindex \sustainOff
-@funindex sustainOff
@funindex \sostenutoOn
-@funindex sostenutoOn
@funindex \sostenutoOff
-@funindex sostenutoOff
@funindex \unaCorda
-@funindex unaCorda
@funindex \treCorde
-@funindex treCorde
Pianos generally have three pedals that alter the way sound is
produced: @notation{sustain}, @notation{sostenuto}