Complex sentence: London was primarily interested in the atypical (for Grotus) song Hand to Mouth, and when it failed to catch on a a single, dropped the band two months after releasing Mass. After seven fine years, the group decided to call it quits.
Split into simpler sentences: London was primarily interested in the atypical (for Grotus) song Hand to Mouth, and when it failed to catch on a a single, dropped the band. After 7 fine years, the group decided to call it quits.