Rob, > Functionally that would produce the desired result. > > Perhaps I've misunderstood the ALSA implementation, but a sequencer > client can't rely on the persistence of the event (snd_seq_free is > deprecated) - so it would have to be deep copied for queuing. The > embedded s/w eng. in me shies away from copying data unnecessarily. Let's call it defensive copying;) This wouldn't be an expensive operation. The event data structure is rather large, but for each event, only a small part of it really matters. If you just copy the pertinent entries, then you only have to copy a few bytes per event. Peter