Complex sentence: The higher pitched of the two is called a "redoblante" (Brea and Millet 1993:197) and, in addition to its basic pattern, there are many "floreos" (variations) that it can play.
Split into simpler sentences: The higher pitched of the two is called a "redoblante" (Brea and Millet 1993:197). In addition to its basic pattern, there are many "floreos" (variations) that it can play.