Flea Market Music Market Music has published a wide variety of ukulele instructional books (distributed by the Hal Leonard Corporation) and DVDs as well as CDs of recorded ukulele music. To date over 600,000 books have been sold. The company's products are sold through retail and on line. Beloff and his wife, Liz, perform and give workshops at festivals and other musical events to promote ukuleles and the Flea Market Music products. In 2014 they were guests on a WNPR radio show with ukulelist Jake Shimabukuro, discussing ukuleles and ukulele music. Flea Market Music Flea Market Music is an American company which publishes
Musical instrument which produce sound by electronic means. Within each category are many subgroups. The system has been criticised and revised over the years, but remains widely used by ethnomusicologists and organologists. Andre Schaeffner, a curator at the Musée de l'Homme, disagreed with the Hornbostel-Sachs system and developed his own system in 1932. Schaeffner believed that the pure physics of a musical instrument, rather than its specific construction or playing method, should always determine its classification. (Hornbostel-Sachs, for example, divide aerophones on the basis of sound production, but membranophones on the basis of the shape of the instrument). His system divided instruments