play_along
1. [ verb ] (music,performing arts) perform an accompaniment to
Synonyms: accompany follow
Examples:

"The orchestra could barely follow the frequent pitch changes of the soprano"

Related terms: play music
2. [ verb ] (work) cooperate or pretend to cooperate
Synonyms: go_along
Examples:

"He decided to play long with the burglars for the moment"

Related terms: collaborate