Drum beats by Yuesef reverberate through the hall of Cafe Beranda in Batam Center, Batam, Riau. The 25-year-old man is accompanying a singer on A Night in Tunisia. There are 20 persons in the audience.

This is the clinic portion of the Batam Jazz Society event held twice a month. This event is an occasion for local bands to hone their skills and rehearse for September's Batam Jazz Fiesta.

At first, it was hard for Yuesef to learn the song. "But,