Octavian Nemescu is a composer of orchestral, chamber, choral, electroacoustic, multimedia, metamusic, imaginary and ritual works that have been heard throughout Europe and elsewhere. Throughout many years, from his youth, he contributed decisively to the development of the avant-garde in Romanian music. Nemescu and his colleagues launched the spectral current in Romanian music (Illuminations for orchestra 1967), with an orientation towards the usage of the ison (drone).