"During the early Soviet era many artists attempted to integrate technology and creativity; Avraamov's work typifies this trend. He invented a graphic-sonic art which was produced by drawing directly onto magnetic tape. He also sought to overcome equal temperament and tonality by his creation of an ‘ultrachromatic’ 48-tone system. This method was proposed in a thesis entitled Universal'naya sistema tonov (‘The Universal System of Tones’) and was realized in his demonstrations which took place in 1927 in Berlin, Frankfurt and Stuttgart. He is considered a precursor of the musique concrète movement with his Simfoniya gudkov (‘Symphony of Factory Sirens’) which was performed in Azerbaijan in 1923 and later in Moscow." via sonification.eu
