Complex sentence: Affinity's contract with Vertigo, a branch label of Philips Records, included an advance payment, which allowed them to buy new equipment and a more comfortable six-wheel vehicle, and employ a roadie.
Split into simpler sentences: Affinity's contract with Vertigo, a branch label of Philips Records, included an advance payment. This allowed them to buy new equipment and a more comfortable six wheel vehicle, and employ a roadie.