Both Miles Davis and John Coltrane are credited with popularizing modal jazz, allowing them to step away from the more rigid structures associated with some other approaches to jazz composition.
Modal jazz emerged in the mid-1950s. It’s named for the fact that it relies on musical modes. Organizationally, it’s more scalar than chordal. As a result, it provides more space for unique improvisations that would otherwise be challenging with more chordal versions of jazz. Both Miles Davis and John Coltrane are credited with popularizing modal jazz, allowing them to step away from the more rigid structures associated with some other approaches to jazz composition.