What metaphors are used in High Fidelity by Nick Hornby?

Hornby constantly uses musical references as a metaphor for Rob's feelings of inadequacy. In Chapter Fifteen, Rob manages to offload a record called the Sid James experience, a record he has been trying to sell for years. Sid James is a comedy actor from his parent's generation and the fact that himself, Barry, and Dick are so happy that they have sold it highlights their need to move away from their parent's and grandparent's generation. At the end of the day, he meets Laura and she tells him she has had sex with Ian. A week later the man brings back the record saying it was not the album he thought it was, consolidating Rob's misery.