Op. 1
- 4 Polonaises (Clara Schumann)
- Erlkönig (Schubert)
- Five Christmas Songs
- OP1 (disambiguation)
- Opus One (disambiguation)
- Opus number
- Partitas for keyboard (Bach)
- Passacaglia for orchestra (Webern)
- Piano Concerto No. 1 (Rachmaninoff)
- Piano Quartet No. 1 (Mendelssohn)
- Piano Quintet (Turina)
- Piano Sonata (Berg)
- Piano Sonata No. 1 (Brahms)
- Piano Sonata No. 1 (Prokofiev)
- Piano Trios, Op. 1 (Beethoven)
- Rhapsody, Op. 1 (Bartók)
- Romance for violin (Elgar)
- Rondo in C minor (Chopin)
- Scherzo in F-sharp minor (Shostakovich)
- Scherzo à la russe (Tchaikovsky)
- Sinngedichte
- Sonata for Two Pianos (Goeyvaerts)
- String Quintet No. 1 (Dvořák)
- String Sextet (Waterhouse)
- Symphony No. 27 (Michael Haydn)
- Symphony No. 28 (Michael Haydn)
- Symphony No. 29 (Michael Haydn)
- Symphony in E-flat (Stravinsky)
- Symphony in E-flat (ballet)
- The Tempest (Sullivan)
- Trios, Op. 1 (Stamitz)
- Twelve Trio Sonatas, Op. 1 (Vivaldi)
- Täuberln-Walzer
- Variations on the name "Abegg"
- Violin Sonata No. 18 (Mozart)
- Violin Sonata No. 19 (Mozart)
- Violin Sonata No. 20 (Mozart)
- Zwei Gesänge, Op. 1 (Schoenberg)