English composer and organist. Vicar-choral of St Paul's Cathedral from some time in the 1620s, also organist of Christ Church (Newgate). He was on the fringe of the court in 1630s, and wrote pastoral dialogues in the declamatory manner, but was in addition attracted to the tuneful partsong or glee, and is well represented in contemporary catch books. He has one or two pleasant songs to his credit. Two keyboard pieces in a MS in the British Museum by 'Yves', 'sett forth by B. Cosyn.' With William Lawes he composed music for The Triumph of Peace (Masque) by Shirley, the magnificent entertainment presented by the members of the Inns of Court to the king and queen in 1633, with scenery devised by Inigo Jones.