• Sofia Gubaidulina

Quaternion for cello quartet, two of the cellos are tuned down a quarter tone

Music for Flute, Strings, and Percussion, the strings are divided into two sections, one of which is tuned a quarter-tone lower than the other.

• Alois Hába

Suite for string orchestra (1917)

Fantasy for violin solo in Quarter-tone System

Fantasy for violin & quartertone piano, Op. 21

Sonata for quarter-tone piano, Op 62

String Quartet No. 2 ("In quarter-tone system"), Op.12

String Quartet No. 12 ("In quarter-tone system"), Op. 90

Suite No. 1 (Hába) for quarter-tone clarinet & quarter-tone piano, Op. 24

Suite No. 6 (Hába) for Quarter-Tone Piano, Op 88

Suite for 4 trombones in quarter-tone system, Op. 72

Suite for violin solo in quarter-tone wystem, Op. 93

• Charles Ives

Quarter-Tone Pieces (3), for 2 pianos, S. 128 (K. 3C3) (1923-1924)

• Ivan Vïshnegradsky

Composition en quarts de ton (1963)

À Richard Wagner , for baritone & 2 pianos in quarter tones, Op. 26 (1934 -1937)

Chants sur Nietzsche (2), for baritone & 2 pianos in quarter tones, Op. 9 (1923)

L'Évangelie Rouge , cycle for voice & 2 pianos in quarter tones(2nd version), Op. 8 (1918-1920)