Complex sentence: Attaingnant published over 1500 chansons by many different composers, including Paris composers Claudin de Sermisy, Pierre Sandrin and Pierre Certon, and most prominently Clément Janequin with five books of chansons.
Split into simpler sentences: Attaingnant published over 1500 chansons by many different composers. In this collection the Paris composers, like Claudin de Sermisy, Pierre Sandrin and Pierre Certon, are prominently presented, but Clément Janequin is at the top of the list with five books of chansons.