The only time you might need to Beatmatch is when mixing into another DJ, and this would be using the master tempo only. Simple method? Tap tempo and then nudge
If you really want to beatmatch manually run mixxx/traktor routed into Ableton channels via Soundflower or Jack
Buy CDJ's if you really want to beatmatch or map your APC to Mixxx/Traktor or something similarI just wanted to see if I could actually beat match in Ableton with my APC40 lol.