Guayadeque Music Player

Is it possible to add something like Crossfade: -2sec ?
If I dj at a milonga (event for argentine tango) or sometimes a birthday I'd like to insert a gap before every track in the queue (and I don't want to add a track named "2sec pause" .
If you could add a feature like that I would be absolutely happy!

I remember that there was some people asking for this on the Ubuntu forums some time ago. In particular one guy wanted the play the guitar over the track and he wanted to be able to set a pause between tracks to get the guitar.

By the way, it's nice to see guayadeque being used to play milonga! (I'm Argentinian).

Actually, I'm looking for a good app for it.
I used to do it with Amarok1.4/Pana, but I don't like all the kde3-stuff… But at least, you could configure a pause with no difficulties.