Last summer flutist Jeffrey Cohan got together several accomplished colleagues and put on an ad hoc chamber series featuring works they wanted to play. The result was music making as it should be: accurate, congenial, edifying, and joyous. This time, under a formal title, the series returns–slightly expanded and with a couple of changes in the lineup. In all, there are six recitals–this Monday through Thursday, August 5–whose programs capitalize on the various combinations of instruments that happen to be available. Works for flute and organ are showcased in the first concert (with Cohan and Thomas Weisflog); the gimmick here is that the pieces are all by J.S. Bach and three of his sons, Carl Philipp Emanuel (a pioneer in advancing the sonata form), Johann Christian (the “London Bach” much admired by Mozart), and Johann Christoph Friedrich. For history buffs, this program might well shed some light on the evolution of an admittedly minor genre. The second concert, this Thursday, promises to be a feast for connoisseurs of the voice. Soprano Patrice Michaels Bedi, accompanied by Cohan on the flute and Jeffrey Kust on guitar, will perform songs of passion (Thea Musgrave’s 1971 Primavera and Five Songs of Garcia Lorca by west coast composer Noel Lee), whimsy (Argerto’s Letters From Composers, based on actual missives that include one from Puccini titled “I Hate Paris”), and chivalrous love (Walton’s 1959 Anon in Love, using poems from the English Renaissance). The remainder of the series is equally enjoyable and educational–especially Cohan’s solo recital introducing ten different flutes from five centuries. Monday, 8 PM, First Unitarian Church, 5650 S. Woodlawn, and Thursday, 8 PM, Augustana Lutheran Church, 5500 S. Woodlawn; 493-2408.