Complex sentence: After playing with Reed's band for three years, however, Kelly wanted to cultivate his own style, which has come to be characterized as a unique mixture of electric blues, R & B, funk, and disco.
Split into simpler sentences: After playing with Reed's band for three years, however, Kelly decided to strike out on his own. One reason for this decision was his eagerness to cultivate his own style, which has come to be characterized as a unique mixture of electric blues, R & B, funk, and disco.