2.079 pistas de áudio isenta de royalties para "Ops"

Klaviersonate Nr. 29 B-Dur op. 106 Hammerklavier - I. allegro

Klaviersonate Nr. 28 in A-Dur, op. 101 - III. Langsam und sehnsuchtsvoll

Klaviersonate Nr. 10 G-Dur, op. 14.2 - III. Allegro assai

Hector Berlioz - Symphonie fantastique, op. 14 - 5. Songe d'une nuit du Sabbat (Igor Markevitch, Orchestre Lamoureux, 1962)

Klaviersonate Nr. 3, Op. 2.3 C-Dur - I. allegro con brio

Hector Berlioz - Symphonie fantastique, op. 14 - 5. Songe d'une nuit du Sabbat (Igor Markevitch, Orchestre Lamoureux, 1962)

Quartet in C sharp minor, op. 131 Trio from Scherzo, bars 93-100

Klaviersonate Nr. 17 d-moll, op. 31.2 Der Sturm - III. allegretto

Sonata no. 15 in d major, op. 28 'pastorale' - ii. andante(1)

Alice Gi-Young Hwang plays Chopin's Scherzo no. 3 in C sharp minor, Op. 39

Alberti bass in the opening of Clementi's Sonatina in G, Op. 36, No. 2.

Sonata no. 15 in d major, op. 28 'pastorale' - i. allegro

First zither solo in G'schichten aus dem Wienerwald, op. 325 (Johann Strauss II)

Klaviersonate Nr. 27 e-moll op. 90 - II. Nicht zu geschwind...

Klaviersonate Nr. 9 E-Dur, op. 14.1 - III. Rondo - Allegro commodo

Quartet in C sharp minor, op. 131 — Trio from Scherzo, bars 69-76

Alice Gi-Young Hwang playing Chopin's Scherzo No. 2 in B flat minor, Op. 31

Klaviersonate Nr. 15 D-Dur op. 28, “Pastorale” - I. allegro

Klaviersonate Nr. 3, Op. 2.3, C-Dur - II. adagio

Klaviersonate Nr. 12 B-Dur, op. 26 - III. Marcia Funebre - Andante maestoso

P.I. Tchalkovsky Symphony No.4 in F Minor Op.36 I. Andante sossenuto (Tchaikovsky) European Archive

The closing bars of String Quartet in E flat, Op. 33 by Haydn

Dominant sevenths in Chopin's (1810–1849) Mazurka in F minor, op. 68, no. 4, m. 1-4.

Klaviersonate Nr. 7 D-Dur, op. 10.3 - IV. Rondo - allegro

Klaviersonate Nr. 16 G-Dur op. 31.1 - I. allegro vivace

Klaviersonate Nr. 25, G-Dur, op. 79 - I. Presto alla tedesca