A jazz scale is a musical scale use in jazz. Many "jazz scales" are common scales drawn from Western European classical music, including the diatonic, whole-tone, octatonic (or diminished), and the modes of the melodic minor ascending. All of these scales were commonly used by late nineteenth and early twentieth-century composers such as Rimsky Korsakov, Debussy, Ravel, and Stravinsky, often in ways that directly anticipate jazz practice (Tymoczko 1997). Some jazz scales, such as the bebop scales, add additional chromatic passing tones to the familiar diatonic scales.