In 2019 Open Music Library launched International journal of the study of music and musical performance.
The journal advances both a general and professional interest in music and its performance with essays that cover a range of approaches: from discussions of little-known composers and musicians drawing upon primary and secondary sources to more specialized studies of composers, works, instruments, performers, audiences, and institutions. A review section covers new books, scores, and recordings. Whenever possible, international contributions are presented in the original language as well as in English.
Below, Hans Werner Henze’s Du schönes Bächlein; the work’s performance practice is discussed in the inaugural issue.
McCoy Tyner’s improvisation on Bessie’s blues, recorded with the John Coltrane Quartet in 1964, exemplifies the traditional Afrodiasporic performance practice of apart playing.
A formulation of the art historian Robert Farris Thompson, apart playing occurs whenever individual performers enact different, complementary roles in an ensemble setting. For interpretative purposes, the concept helps to provide a cultural context for certain pitch-based formal devices, such as substitute harmonies and playing outside an underlying chord or scale, which Tyner uses in the course of his solo.
This according to “Apart playing: McCoy Tyner and Bessie’s blues” by Benjamin Givan (Journal of the Society for American Music I/2 [May 2007] pp. 257–80).
Today is Tyner’s 80th birthday! Above, performing in 1973; below, the recording in question.