"I found a collection of Chopin's nocturnes"
Frederic Chopin
Public DomainFrederic Chopin

Fryderyk Chopin wrote 21 Nocturnes between 1827 and 1846.

Nocturnes are intended to evoke the night, and are therefore the perfect choice for a vampire's girlfriend.  They tend to be tranquil, and a little sad.

Listen on Spotify:  No.1 in B flat minor     No.7 in C sharp minor     No.16 in E flat major