According to pianist Ian Pace from the academic mailing list Music-Since-1900:

I just heard last night the very sad news that Horatiu Radulescu has died. He had been seriously ill for several months. A fantastic composer of passionate, hallucinatory music, and of vital importance in the history of spectral music. May he rest in piece.

From Wikipedia:

Radulescu was born in Bucharest, where he studied the violin privately with Nina Alexandrescu, a pupil of Enescu, and later studied composition at the Bucharest Academy of Music (MA 1969), where his teachers included Niculescu, Olah and Stroe, some of the leading figures of the newly emerging avant garde (Toop 2001). Upon graduation Radulescu left Romania for the west, and settled in Paris. One of the first works to be completed there (though the concept had come to him in Romania) was Credo for nine cellos, the first work to employ his spectral techniques. This technique "comprises variable distribution of the spectral energy, synthesis of the global sound sources, micro- and macro-form as sound-process, four simultaneous layers of perception and of speed, and spectral scordaturae, i.e. rows of unequal intervals corresponding to harmonic scales".[1] In the early 1970s he attended classes given by Cage, Ligeti, Stockhausen, and Xenakis at the Darmstadt Summer Courses, and by Ferrari and Kagel in Cologne; later, from 1979 to 1981, he studied computer-assisted composition and psycho-acoustics at IRCAM.

- Horaţiu Rădulescu Wikipedia entry
- Horaţiu Rădulescu interview
- Article from Rue89 (in French): "Horatiu Radulescu, le plus inouï des compositeurs, est mort"
- YouTube video: "Das Andere (part 1/3) (1984) Horatiu Radulescu (b. 1942)"

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