I never really took time out to find recording eq, so I'm completely new to this. My friend recorded an EP of his own work using only MIDI's off his pc and a regular microphone, he gave a copy of his cd and it was really good, and I told him I'd lay out a bass line for it. I sat down, studied it and wrote out a good piece that fits the music, but now I need to find a way to record my lines onto his cd. So basically, I want to put my bass line on his songs, but I don't know how. PLEASE HELP! What should I buy? What brand name? What do I need to know?