I have both a QY-70 and a QY-100. They do have a tracker like view where you scroll vertically and can insert midi events including NOTE, CC and Sysex. Not exac

I have both a QY-70 and a QY-100. They do have a tracker like view where you scroll vertically and can insert midi events including NOTE, CC and Sysex. Not exactly a Polyend tracker but a very similar idiom. The cool thing about the later QY range is they have the unique feature of reharmonizing your patterns based on chords held in your left hand. My favorite units for composing on the go as they are cheap, battery powered and have all the sounds and presets (drums, strings, synths, ethnic instruments etc) to compose full songs and arrangements. Rock solid midi sequencing as well. Some sounds are dated but good enough to have something going that you can polish up at home with quality vsts. Check out Galcher Lustwerk albums to get an idea about the electronic sounds included. To this day I did not find anything comparable in features and portability, OP-1 and OP-Z is great but not as well versed on all fronts. I wish there was a newer version with sampling, that would be perfect.