Партитури в прогрес: от схемите на Андре Букурещлиев до тълкуванията на Клод Елфер
Scores-in-progress: from André Boucourechliev’s Schemes to Claude Helffer’s Interpretations and Dissonances in Microtonal Context

Summary/Abstract: In the 1960s, with the introduction of the idea of aleatorics and its transformation into one of the specific ideologems of the second avant-garde, the connection between the composer and the performer became especially important. From the aleatoric score grows the second stage of the work-in-progress. André Boucourechliev was joining the Paris avant-garde with his aleatory opuses, and Claude Helffer is his main piano music interpreter and promoter. The text is dedicated to Helffer’s interpretations stored on Boucourechliev’s manuscripts in the pianist’s archive. Information about them and copies of manuscripts is presented for the first time.

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