a musician who is paid to play with a band in a recording studio or in a concert, but who is not a permanent member of a band

He was desperate for stardom after years of performing as a session musician. 做了几年的录音室乐手，他急着想出名。

Spotlights sweep the stage as various session musicians and backing singers assemble. 在临时乐师们和和声歌手集合的时候追光灯照亮了整个舞台。