[LAU] Any program suitable for Backingband?

Hi, I'm doing more and more live stuff this days and personally and together in a band, I'm/we are using backingband played from some variations of music players (stereo out). I'm in a need of a player (or something that acts like a player) for backing- band and monitoring purposes(the music plus ticks and individual mixes and so on). Does it exists a program and/or well established practice in Linux that can do this stuff in an easy, predictable and quick way when using a computer with a sufficent numbers of audio channels: *Start a song with a foot pedal (space button on a keyboard is good enought). This is start, stop pause through a play list. *Providing several channels out (jack/soundcard) for in house mixers, click track, individual monitor mixes and so on Ordinary DAWs are probably not good for this, so any suggestions? Thank you. Jostein