Ethan Hayden is a composer and performer, currently pursuing a Ph.D. in music at the University at Buffalo, US.
While Sigur Ros fans who are not also students of linguistics would probably prefer a book that concentrated more on the music and less on things like trochaic rhythm, xenogloss and echolalia, there's no denying that Hayden does make his points successfully and reading this book did give me a new level of appreciation for an album I already loved. Midnight to Six