Let me know how it goes, or frustrations. I admit that currently it is not the most friendly UX. And found out a bug that if no direct P2P possible, it fails to fallback to the STUN-ish data relay. However LAN mode and WAN via direct P2P works on latest releases.
This is probably not what you are looking for, but for beginners visiting this page. This website gives you a nice start and shows how old hits can be played: https://learningmusic.ableton.com/