My Instruments: Most of my violins are patterned on either the 1737 “Joachim” del Gesu or the 1716 “Medici” Strad violins. For cellos, I like a model based on an 1854 instrument by Giuseppe Rocca; I also occasionally use a mold based on the “Duport” Stradivari cello. My violas are based on the “Conte Vitale” Andrea Guarneri of 1676 (with a back length of 16 3⁄16 inches), and a 16 ½-inch variation of the same instrument. I welcome inquiries regarding commissioned copies of other instruments.