This is best program I luckily stumbled upon that does exactly what I was looking to do. I am using it to program drum patterns and practice exercises. Works awesome for that. A great supplementary tool. Handy, quick and easy also for inputting tab to see if it sounds right or remotely close. Can suit these purposes for other instruments as well I suppose. I love just automating a practice routine as a song and it takes itself through different patterns and tempo changes which is real handy.
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I wish it had a couple of features, but I make do making simple scripts to auto edit the XML files like doing mass bpm changes. Sucks when you mess those XMLs up trying to manually edit. (There is a reason I avoid data entry work) but I have the structure pretty well learned.