A rock band typically consists of a DRUMMER, a bassist, and other instrumentalists. The term 'rock band member' can refer to any of these musicians. The crossword solutions for the term 'rock band member' are 'DRUMMER' (7 letters) and 'bassist' (7 letters). A DRUMMER is a musician who plays the drums, which are percussion instruments that provide the rhythm for a song. A bassist is a musician who plays the bass guitar, which provides the low-end sound in a song.