Reply To: Jazz scores
Most “real” jazz is not 100% “created in the moment of playing.” Jazz musicians play arrangements. (See Art Tatum.) Even much free jazz will use some sort of a roadmap as a jumping off point. (See Anthony Braxton.) Improvisation in jazz usually occurs within existing frameworks.
That’s why I mentioned the “base composition” 😉 Anyway, it’s not my opinion as I am not pinned down to those definitions. And it gets difficult with crossover styles anyway. It’s all rather fluid to me. After all improvisiation is a large part of lots of styles, too.