LP Salsa Sergio Bongo Cowbell The LP ES-10 is named for New York Latin music producer Sergio George. It has a deeper pitch and lively overtone that is associated with Latin music. Mountable version. LP Salsa Cowbells are hand crafted in the LP tradition and are specifically designed for use in Latin music. They offer livelier sounds than other drier LP bells and have become extremely popular. They are also great additions to any percussion or drum kit adding new colors to any style of music. LP Salsa Cowbells are equipped with the LP forged eye-bolt assembly (except hand-held bells) to provide a sure grip to any 3/8 diameter rod.