Gasparo, which helped develop an instrument of modern character, with very powerful tone and projection. Virtuosi have also long recognized the exceptional qualities of da Salò's violins, violas, and double basses. In 1842, the Norwegian virtuoso Ole Bull was willed an unplayed, richly-decorated da Salò violin originally made in 1562. Benvenuto Cellini carved the scroll of this spectacular instrument, which is on permanent display as a part of the exhibition "People and Possessions" at Vestlandske Kunstindustrimuesum in Bergen. One of his finest instruments, a double bass with a rapidity of response similar to that of a violin (owned by the 18th - 19th century virtuoso Domenico Dragonetti), is preserved today in the Basilica of San Marco in Venice. A second, exceptionally rare bass, possibly the only surviving example of a classical violone contrabasso with a six-hole peg box, was discovered by the Roman master luthier and restorer Luigi Ottaviani in the stores of the Museum of Musical Instruments in Rome, where it is now displayed. A third double bass is preserved in storage beneath the Royal Ontario Museum in Toronto, Canada as part of a collection donated by R. S. Williams. And a fourth was acquired by the Salodian family Biondo from M° Leonardo Colonna, for one of the double bass players of Teatro alla Scala of Milan, and is now on display in a room of the City Council Palace in Salò. This bass is used in many of the concerts of the annual Gasparo da Salò Summer Festival concert series. In addition, one of Gasparo da Salò's violins is prominently displayed at the Lobkowicz Palace in Prague. Because of their scarcity, only five instruments made by Gasparo da Salò are known to have been auctioned since 1893. Most recently, Christie's auctioned a violin in 1980 and a viola in 2010 for $542,500. Violists who play da Salò's instruments include Gérard Caussé, Jennifer Stumm, James Dunham, Amihai Grosz, and Cynthia Phelps. References Sources Anton Maria Mucchi, Gasparo da Salò. Hoepli, Milano, 1940 Farga, Franz, Violins & Violinists. Trans. Egon Larson with Bruno Raikin. New York: Frederick A. Prager, 1969. Andrews, Robert, Gasparo Bertolotti da Salo. Berkley 1953. Dassenno, Flavio - Ravasio, Ugo Gasparo da Salò e la liuteria bresciana tra rinascimento e barocco . Brescia 1990. Dassenno, Flavio Per gli occhi e 'l core. Strumenti musicali nell'arte. Cortefranca, 2004. Dassenno, Flavio (a cura di) "Gasparo architetto del suono", Città