If you want to pursue a successful career in music, choose the right traits for your Sim. The Creative trait will affect how often your character gets inspired. If a Sim is inspired while playing a musical instrument, they will gain skill points faster. The Music Lover trait is helpful, too – your Sim will get a mood boost every time they listen to or play music. To gain even more skill points from practicing, select the Musical Genius aspiration among the bonus traits.