One thing I'd love to have is *simple* MIDI sequencer that does *only* midi (no audio whatsoever), is optimised to handle arbitrary note timing (no tempo, beats, ...), and using the ALSA sequencer interface. The saved file format doesn't even have to be midi. Sort of a dumb multitrack recorder for midi data, slaved to JACK transport control.
I agree completely that a straight plain MIDI sequencer is needed. Not so sure about the no tempo idea though. Editing MIDI without the concept of tempo and/or bars would be a most horrible thing. Ardour sync through some means is definitely essential (and the thing that makes the current stable version of MusE essentially useless to me). I don't know about "simple", except the fact that it's just MIDI. I'd like a feature complete MIDI sequencer (in gtk), not one that's sucked down feature-wise.
Writing a multitrack recorder is a duplication of effort - we already have one (and I severely doubt anyone is going to be surpassing ardour in quality any time soon).
We don't, however, have a just-MIDI sequencer, with all the nice features a MIDI sequencer needs (like advanced control editing, etc.) The next version of MuSe could be quite good, but it has all that audio stuff holding back development, plus it's Qt of course..
(Random thought) A MIDI sequencer where you can draw control curves over the tracks (like ardour volume and whatnot) would be very cool.. esp. for electronic music (like, say, trance) when the control parameters are as important as the notes themselves
-Dave
