As event manager build the gig setlist. As guest musician apply to play your favourite songs!
As an event manager you can create a new gig, set-up the song list and define the needed musicians for each.
As guest registered member you can candidate yourself to play your instrument for the songs you like.
The application is in a early beta version, so little bugs or malfunctioning can occur. Pleaser report any bug or feature request to firstname.lastname@example.org