On Sun, 2006-08-27 at 20:27 +0300, juuso.alasuutari@xxxxxxxxxxxxxxxxx wrote: > Greetings, list. So far while playing with Hydrogen I've found out that: > > 1) I can set JACK transport off and program Hydrogen from a sequencer (trigger > drum hits in the piano roll), but it's unclear to me if Hydrogen is then > performing in realtime mode (from JACK's point of view) or not. Is it? > This feature is nice, but I like Hydrogen's pattern editor much more than any > sequencer's piano/drum roll. all JACK clients run in realtime mode if JACK is using realtime mode. JACK transport has absolutely zero to do with this. > 2) I can leave JACK transport on, in which case Hydrogen will play its song > score completely synced with the sequencer score. (If I start the sequencer > from 1:01, Hydrogen will start from 1:01, and so on.) > This is cool, but I don't want to compose two different scores to create one > song. welcome to the primary reason why win/mac folks love big monolithic apps with powerful if flawed plugin APIs. > My question is: Can I simply create patterns in Hydrogen and map those to keys, > so that I could trigger patterns in the sequencer's piano roll? I'd love the > ability to start and stop any pattern at any point just by pressing and > releasing a key, and having it all in perfect JACK sync of course. JACK sync means two different things. i suspect you mean transport sync, and in truth that you mean more than this - tempo sync. JACK does not currently provide any way for its clients to share a tempo (bar/beat or meter/tempo) map.