Op. 64

In music, Op. 64 stands for Opus number 64. Compositions that are assigned this number include:

• Britten – A Midsummer Night's Dream
• Chopin – Minute Waltz, Op. 64, No. 1
• Chopin – Waltz in A-flat major, Op. 64, No. 3
• Chopin – Waltz in C-sharp minor, Op. 64, No. 2
• Dvořák – Dimitrij
• Grieg – Symphonic Dances
• Haydn – String Quartets, Op. 64
• Mendelssohn – Violin Concerto
• Prokofiev – Romeo and Juliet
• Schumann – Romanzen & Balladen volume IV (3 songs)
• Scriabin – Piano Sonata No. 7
• Sibelius – The Bard (Barden), tone poem for orchestra (1913, revised 1913)
• Tchaikovsky – Symphony No. 5