Simplify the following text for a Grade 8 native English-speaking person.
Original: He studied composition with Jean-Baptiste Lully , often conducting his operas , and with master of the bass viol Monsieur de Sainte-Colombe for 6 months .
Simplified: He also studied with Monsieur de Sainte-Colombe for 6 months . De Sainte-Colombe was a master at playing the bass viol .