Complex sentence: In addition to performing with her eponymously named solo project, she is also the co-founder, along with Suzi Gardner of grunge/punk/rock and roll band L7, who have released six studio albums, one live CD and a greatest hits record.
Split into simpler sentences: In addition to performing with her eponymously named solo project, she is also the co-founder, along with Suzi Gardner, of punk rock band L7. The band has released six studio albums, one live CD and a greatest hits record.