midi-channel-management-2.alda

# By default, Alda will automatically assign an available MIDI channel for each
# part. In rare cases where you want to control which MIDI channel is used, you
# can use the `midi-channel` attribute.
#
# In this example, both the piano and the guitar are sharing MIDI channel 2
# (whereas ordinarily, each channel would be automatically be assigned a
# separate channel). Note that this only works because the piano and the guitar
# do not have any overlapping notes.

piano:
  (midi-channel 2)
  c8 d e f g a b > c

guitar:
  (midi-channel 2)
  r1 # piano is using channel 2 here
  o3 c1/e/g/>c

  # Here, we swich to channel 3, just for fun!
  (midi-channel 3)
  o3 g1/>c/e/g