Frère Jacques is known in English as "Are You Sleeping?" or "Brother John." This traditional French folk song is usually sung in a round, where one person starts singing, then others join in one at a time singing the same melody. A song must be composed so that the parts work together when sung one after another in a round.
In this arrangement, there is a bass, violin, and viola participating in the round with another bass playing throughout. Follow the finger numbers to learn how to play Frère Jacques on the bass!