[Trombone-l] Trading fours, toasters, sopranobone/slidetrumpet question

[Dave Demko]

Trading fours: During the solos in a jazz tune, two soloists
alternate, each playing four measures at a time. It can be like a
musical dialog.

> Sometimes i read suff on the list that makes me feel
> more stupid than usual: "Trading fours"?? Whats that?
> (In Sweden we dont trade fours very often - we usually
> trade with toasters, shields, meatballs and
> three-legged dogs.)