The Scelsi affair always disturbs me greatly. Reading the comments on Mauro Graziani's website was an ordeal, especially because no one, from either of the two "sides," truly spoke about the compositions in question, the sonic result, or the reasons for their success and appreciation.
Musical philology often leads to high philosophical questions about what a musical work is, what an author is, who holds the authorship responsibilities of a score, etc. Rarely are these issues resolved with direct interventions; more often, attempts are made to broaden definitions, making them inclusive, in such a way as to understand all possible musical worlds without establishing moralisms, unwritten rules, or ostracisms.
Some unanswered questions that may provide food for thought for those who wish to reflect:
Did John Cage write 4' 33''?
Did Duchamp sculpt "Fountain"?
Listening to a performance of "Composition 1960 #10" by LaMonte Young, can one assign the authorship responsibility of that piece to LaMonte Young? (I will spare you the research: the score for "Composition 1960 #10" consists of the phrase "Draw a straight line and follow it").
In one hand I have the Beatles' White Album and in the other hand I have the sheet music with the transcriptions of that album, which would allow me to play and sing it with my cover band: what is the original text of the White Album, the album or the sheet music that reports the notes played?
... Who wrote the Iliad and the Odyssey?
Regarding the compositions attributed to Scelsi, what were the creative roles of Scelsi and the transcribers? Are there such strong ethical implications? Are the compositions attributed to Scelsi appreciated for the underlying idea or for the practical realization? Is it possible, indeed, to establish this distinction between the underlying idea and the practical realization, and to give different aesthetic importance to the various elements?
I repeat, there are no unequivocal answers.