[WalterBright]

An opportunity for musicians to get paid is to seek out video authors that get taken down for incidental copyright violation of the music in it. Offer to make a custom tune for them at a nominal cost.

Sort of like "send me your slide deck and preferred music style, and I'll compose for it an intro and outrow soundtrack for $XX."

[actionfromafar]

Sounds like a machine learning job. :-/