Sentence 1: I was trying to broaden my musical horizons. 
 Sentence 3: One of my pals told me to check out classical music by Tchaikovsky 
 Sentence 4:  One of my pals told me to check out glam rock by Def Leppard 
 Sentence 5:  I ended up loving both, and thanked my friends for the help 
 Given Sentence 2: I asked friends for recommendations of things to listen to.