As I could download several drumtracks, I need bass tracks just to explore the PC way to compose a song. Is it possible?

Help me, if you can. Thanx

hey man, there are Backing tracks available on the website and think they're are some bass tracks in there. also, you could ask a bass player to sit in on an eJamming Session with you.

You can also import 48k 16 bit .wav audio tracks into eJamming of tracks that are already recorded.

good luck!