Publisher Desc.  After a century as the music student's best friend, The Elson's Pocket Dictionary has just taken another leap forward. Thoroughly updated, with new material, Elson's has set a new benchmark for the informed musician, including a pronunciation guide for every foreign-language term, contemporary music and theory from the 20th and 21st centuries, more than 650 composers, and over 4,500 new and revised definitions, which is more than double the number in any other pocket music dictionary.