Stride jazz piano, often shortened to stride, is a jazz piano style that arose from ragtime players. Prominent stride pianists include James P. Johnson, Willie "the Lion" Smith, Fats Waller, Luckey Roberts, and Mary Lou Williams.
Thomas "Fats" Waller (1904–1943), a student of James P. Johnson, was an important contributor to the stride piano style.
Jazz piano is a collective term for the techniques pianists use when playing jazz. The piano has been an integral part of the jazz idiom since its inception, in both solo and ensemble settings. Its role is multifaceted due largely to the instrument's combined melodic and harmonic capabilities. For this reason it is an important tool of jazz musicians and composers for teaching and learning jazz theory and set arrangement, regardless of their main instrument. By extension the phrase 'jazz piano' can refer to similar techniques on any keyboard instrument.
Thelonious Monk in 1947
Bill Evans performing at the Montreux Jazz Festival in 1978
The Original Dixieland Jazz Band, with Henry Ragas on piano