Hey!
Usually I'm using ch 15 for vocalist.I activate it and give all the settings necesary via sysex.It's also posibil to dedicate any track or midi chanel for vocalist by GM editor.Then I'm recording what I need for haveing a good vocalist back voices,right intervals and octaves.I'm using an external sequencer on a laptop and the PC interface from SD1+.I also did vocalist tracks with the internal sequencer, but I prefer an external one 'cause it's easier to control everything.
Using a specific track and midi chanel for vocalist will make you loose one chanel,so you'll have only 15 chanels for instruments...but that's more than enough...
Hope helps, Vio

[This message has been edited by viocaia (edited 10-03-2006).]