Tracks cut in a way they can be repeated forever, minimizing off topic thoughts. I use them for learning/coding/working/sports/lifting/floating and everything that requires a state of flow. I try to find songs that produce certain feelings inside me when I listen to them and cut out any parts where there is dips/lows where my mind starts to wander.
Easiest way to get in touch is in my Discord channel here: https://discord.gg/EVffmZR