I used one for a bit but trackers are so tedious for me. So was nanoloops matrix thing. Arcade pocket operator is fulfilling my handheld chip tune needs. I seriously play with it everyday.
I haven't done anything with LSDj in a while but I've got a few carts in a box somewhere . It's a really powerful little bit of software, worth checking in details...
Turns out the place I ordered my Cart from has 2 ROM pages, first page will be LSDJ second has 6 little indie games, 1 being Beep Boop Boombox some little sequencer. Should be fun as well