Small groups from the swing era & mainstream bands from later- eg Buck Clayton, Buddy Tate, Scott Hamilton. Also small groups from the big bands- Gramercy 5, Goodman sextets etc. Also the more avant-garde offerings of gloriously unclassifiable figures like Pee Wee Russell.

'Modern mainstream' musicians like Errol Garner & Zoot Sims you'll find in the modern section. Henry Allen, Luis Russell and Fats Waller are in early jazz.