Tchapī is part of the Kurdish dance repertoire. It is played in the context of festivities or to express spiritual enthusiasm. This is one of the earliest recordings of Ostad’s music: it was made in 1960 without his knowledge behind the closed door of the room where he had been playing for about an hour. The quality of the recording is naturally poor, but the interpretation of tchapī presented here clearly justifies its inclusion in this selection. The listener is carried into a thrilling dance rhythm that is sustained throughout this masterly improvisation. Although tchapī often appears in Ostad’s playing (whether as a central piece or as a passage), it takes on a different form each time. In the instant case, it is played on a Persian scale with a neutral third, endowing it with a special quality.