Warmin' Up A Riff is a bebop composition by Charlie Parker, a contrafact built on the chord changes of Ray Noble's Cherokee. It was recorded on November 26, 1945, at a landmark Savoy Records session in New York that also produced Ko-Ko, Billie's Bounce, Now's the Time, and Meandering. The personnel included Dizzy Gillespie on trumpet (and piano on some tracks due to the absence of Bud Powell), Curly Russell on bass, and Max Roach on drums. The tune features a riff-based melody with angular, syncopated lines and rapid scalar runs characteristic of early bebop, designed as a vehicle for improvisation over Cherokee's harmonic framework. Its exploratory, warm-up quality distinguishes it from the more tightly composed heads Parker recorded at the same session. Parker's deep familiarity with Cherokee dated back to his formative years in Kansas City, where he described working out new melodies by exploring the higher intervals of standard chord progressions. Warmin' Up A Riff shares this lineage with Ko-Ko, another Cherokee contrafact from the same date. The tune has been reissued on compilations including The Complete Savoy & Dial Master Takes and centennial collections, and transcriptions exist for study purposes. It remains a deep cut in Parker's catalog rather than a widely performed standard, valued primarily for its historical significance as part of one of the most consequential recording sessions in bebop history.
