The National Association of Music Merchants (NAMM) announces 2013’s Top 100 Dealers. The top music instrument, product and sound retailers from around the world will be recognized at the annual summer music product trade show, Summer NAMM, held in Nashville, Tenn., on July 12, 2013. This year, the number of retailer entries in the Top 100 rose dramatically, elevating the competition and making way for many new names on the list.