code: def play_Note(self, note, channel=1, velocity=100):
          
          if hasattr(note, 'velocity'):
              velocity = note.velocity
          if hasattr(note, 'channel'):
              channel = note.channel
          self.play_event(int(note) + 12, int(channel), int(velocity))
          self.notify_listeners(self.MSG_PLAY_INT, {'channel': int(channel),
              'note': int(note) + 12, 'velocity': int(velocity)})
          self.notify_listeners(self.MSG_PLAY_NOTE, {'channel': int(channel),
              'note': note, 'velocity': int(velocity)})
          return True
docs: Play a Note object on a channel with a velocity[0-127].
  
          You can either specify the velocity and channel here as arguments or
          you can set the Note.velocity and Note.channel attributes, which
          will take presedence over the function arguments.