I remember references to riffs, e.g., Kenton's "Intermission Riff" in the 40s; runs referring to almost anything by Tatum in the 30s; and rides from the early 40s, at least. Bob Joseph Carson wrote: > It seemed to me that> "riffs," "runs," and "rides" (which are solos) were legacies of the > be-bop/smooth jazz era of the '50s to '60s,