Serenity is a jazz tune written by tenor saxophonist Joe Henderson. It was first recorded in 1964 and released on the Blue Note album In ’n Out, with Kenny Dorham on trumpet, McCoy Tyner on piano, Richard Davis on bass and Elvin Jones on drums. The piece sits in the post-bop realm and is in Eb major, played in 4/4 with a swinging groove. It is notable for its unusual 14-bar form that blends functional harmony with more exploratory, unconventional directions. The original recording runs about 1 minute 46 seconds. Serenity remains a staple of Henderson’s catalog and has been revisited on later releases and live performances.