Mozart Sonata in B flat, K570 Jun 4, 2009 0:34:04 GMT 1 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Billy R on Jun 4, 2009 0:34:04 GMT 1 25/10/2008. UTA 30th Annual Fall Piano Contest Honors Recital. Josephine (9 yrs old), winner of Division II, playing Mozart Sonata in B Flat, K.570 (I.Allegro)