2008/9/26 Brett McCoy <idragosani(a)gmail.com>om>: Yes. It only can be used with Csound. Hydrogen is a great drummachine with it's own GUI. csDrummer is a simple console-based tool. It uses a MIDI file, created with any sequencer, like Rosegarden. It processes the MIDI messages and outputs an audio stream. There is one main feature which makes csDrummer better than Hydrogen: the morphing between two layers of sampled audio.