(I potsed this to the Hydrogen forum but wanted to get opinions here also) I have an elaborate setup for scoring and recording symphonic and semi-symphonic rock music (along the lines of Therion, eRa, Enigma, etc). I am using Rosegarden for the main sequencing, Ardour for recording, a second machine (running Windows) for some virtual instruments controlled via MIDI... and Hydrogen. What I had been doing in the past is scoring the drum parts directly in Rosegarden, but this is awkward, and matching up the MIDI notes to Hydrogen instruments is also a pain. What I'd like to do is compose the entire drum part in Hydrogen (even if this means empty measures) and have the drum song triggered automatically and play back in synch with the other instruments. Will I be able to keep accurate synchronization with the Jack transport between Rosegarden and Hydrogen in this manner (and ultimately, with Ardour, since that is where I am recording)? I have had excellent results synching between Ardour and Rosegarden, especially with multiple parts and doing punch ins at different sections of the piece. -- Brett