La Bohème

Opera time! Puccini's La bohème, first performed in 1896, is the story of hipsters in love in 19th-century Paris. The story is pretty straightforward: Rodolfo the poor poet meets and falls in love with Mimi the seamstress, Rodolfo leaves Mimi out of jealousy, Mimi learns that Rodolfo really left because he wanted better for her, and finally the two briefly reconcile before Mimi dies in Rodolfo's arms in the snow. The opera, she is universal.

The first act ends when Rodolfo (who lives with his three equally broke art-student-type friends) meets and falls in love with Mimi, who lives in his building. In a lovely set of three songs, he sings to her, she gives an even more beautiful response, and the act concludes with a duet of love between the two. Here is one of the best versions of these songs I've found on youtube, performed by the magnificent Luciano Pavarotti and Ileana Cotrubas:

Part 1: Che gelida manina
Part 2: Mi chiamano Mimì
Part 3: O soave fanciulla