Complex sentence: The first, eponymous track on the album is also the only one to feature conventional vocals; most of the others are instrumentals, but some feature high-frequency vocals in the style of The Chipmunks, Pinky and Perky and The Nutty Squirrels.
Split into simpler sentences: The first, eponymous track on the album is the only one to feature conventional vocals. Most of the others are instrumentals; however, some feature high-frequency vocals in the style of The Chipmunks, Pinky and Perky and The Nutty Squirrels.