Abstract
Ferruccio Busoni's Sketch of a New Aesthetic of Music appeared in 1910. Schoenberg, in his copy of the little book, wrote critical marginal comments which crystallize two opposed outlooks in musical aesthetics. Busoni writes: Notation, the writing out of compositions, is primarily an ingenious expedient for catching an inspiration, with the purpose of exploiting it later. But notation is to improvisation as the portrait is to the living model… …What the composer's inspiration necessarily loses through notation, his interpreter should restore by his own…