The Inner Game of Music by Barry Green, with Timothy Gallwey
This book is based on Gallwey’s quite successful title, The Inner Game of Tennis. What is striking and admirable is that Green didn’t just write a knockoff cribbed from Gallwey’s book. After meeting with Gallwey about the project, they decided Green should live with (and teach) the principles and then write the book. Three years later, Green was ready and this book is the result.