"Of Time and Breath", a concert with Christina Ascher, contralto; Kaoru Hinata, flute; and John Patrick Popham, cello, features the music of John Cage - Music for Three; Theodore Wiprud - Siren's Song; Brian Schober - Song of Water Clock at Night; Helmut Lachenmann - temA; and Alice Shields - Komachi at Sekidera. Tickets $20/$10 at the door; Tenri Cultural Institute, 43A W. 13th St., New York City. 3:00pm. Brian Schober, who rejoined ACA last year, has composed in all instrumental and vocal forms. His music has been performed by the Gregg Smith Singers, The New York Treble Singers, Voces Novae et Antiquae, the Kitos Singers, neXus Arts, Palisades Virtuosi, the percussion ensembles of The Juilliard School, Mannes School of Music and the University of Buffalo, and the New York Percussion Quartet. As a performer of organ music of all styles and periods, he has toured both the U.S. and Europe, particularly presenting concerts of new organ music. He has also performed with the ensemble Speculum Musicae.