From "Study on a single frequency"

1. "Intervalli. Do per pianoforte"
   a. Score, 1950
       Five sheets glued on one cardboard,
       black ink on white paper, handwritten,
       35 x 123 cm Signed.
   b. Audio included in:
       "Suono segno gesto visione a Firenze 2", 2008, No. FXCM0129
        Audio program notes:
      - "Intervalli 2"
         Length: 04'20"
      - "Intervalli 3"
         Length: 06'03

2. "La ripetizione del suono 120 volte rende
    l'informazione inudibile, quasi inudibile"
    a. Score, 1990    
       - One page hand written by the artist and
         twelve computer printed sheets signed
         with the initials "CH", 28 x 24 cm
         Included in ring binder Giuseppe Chiari - Opere"
      -  Poster, 2000
         with photos of the twelve sheets, 95 x 120 cm
         Signed
    b.  Audio
         Audio program notes:
      -  "Il tamburo, per pianoforte", 1950
          Length: 4'24"
          120 provisions for the length of a single sound
          Version for computer
      - "Il tamburo, per pianoforte", 1950
         Length: 8'18"
         120 provisions for the length of a single sound
         Version for computer

See also Audio No. FXM0141

Bibl.: Giuseppe Chiari, "Musica senza contrappunto", Milan, 1969.