This week, virtuoso Hungarian Gypsy violinist Roby Lakatos and his Ensemble will perform a piece called "Tic Tac."  Rabia Brooke will play an excerpt from Prokofiev's Violin Concerto No. 2. She just completed her freshman year at The Juilliard School, where she is a student of Catherine Cho.  Yugo Maeda, 8, from Rancho Palos Verdes, Calif, will play the "Preludio" from Partita No. 3 by J.S. Bach. He is a student of Gail Gerding Mellert.