Complex sentence: Subsequently, Alan A. would record the vocals, and after the mixing the song would be ready to be mastered; through this systematic way of working, Alan A. and Shooflar produced a new song every time they met.
Split into simpler sentences: Subsequently, Alan would record the vocals, and after the mixing, the song would be ready to be mastered. Through this systematic way of working, Alan and Shooflar produced a new song every time they met.