And now, I'm thinking I seriously need to get my sh*t together and go buy a bass guitar... Yes, there's a MIDI-bass in Ableton, which I use for making backing tracks, but it has just about the same amount of sustain as a glove dropped on a floor (yes, it has been tested. Multiple times...). I'm sure there might be some way to actually get the notes to ring out for more than half a millisecond or so, but I'd rather save myself the trouble and improve my chances of finding a band at the same time by purchasing an actual bass and bass amp... Until I find a solution, I'm not getting much backing track done...