It doesn’t read MIDI files, so yeah you’ll have to sample many chords
(and it’s better this way, you’ll understand why when you’ll turn a guitar stab in an evolving atmospheric drone in just a half a dozen knob movements).
Arp can stick to scales, it knows all the major/minor scales but it can’t do the exotic scales like mixophrygian or diminished lydian spanish gypsie tone.
No swing templates, but it has swing and that very cool micro-timing function that I’d love to have on the Machinedrum.