Something about the percussive and lyrical nature of the piano makes it particularly strong for conveying deep emotion. A lot of the great melodies and pieces in the piano literature—from composers as diverse as Frédéric Chopin and Ludovico Einaudi—deal with matters of love and romance, with two paramount examples in Beethoven's “Moonlight Sonata" and Liszt's “Love Dream." This playlist is the soundtrack to an unabashedly romantic evening.