[dlessnau]

Here is what I did. I bought a splitter cable. I plug the left channel from the computer, which has the music only, into the female end of the "one into two" splitter, and then I plug the two males into the right and left channels of my mixing board, and it comes from both speakers. I leave it plugged in, with just one of the two male ends plugged into the left channel, for normal play.

Then if I get a multiplex song, I unplug the right channel and plug in the remaining male, with the split left channel music, into that one. Only takes a second.

Of course, it would be better if this was incorporated into the Hoster program if at all possible.