Food for thought - music as seen by musicians and composers

Fedra Florit, Il Trio di Trieste, Sessant’anni di musica insieme (E.D.T. Edizioni, 1992) an amazing book (in Italian), but please look for a ".pdf" extract at the above link...

Igor Stravinsky, Poetics of Music in the form of six lessons (Harvard University Press, 1942)

Rupert Sheldrake, The Rebirth of Nature, The Greening of Science and God (Park Street Press, 1991)

Robert Gerle, The Art of Practising the Violin, (Stainer & Bell, 1983)

Luigi Bonpensiere, New Pathways to Piano Technique - A Study of the Relations Between Mind and Body with Special Reference to Piano Playing (Philosophical Library, 1953)

Thanks to Maurizio Angeletti for hinting.