piano tuning and temperament theory, brief overviews. what is the theory of temperament ? what is the theory of piano tuning ?. Piano and Theory Instructor Bryon Tosoff is accepting classical and jazz piano and theory students for the fall and winter semesters. Fundamentals of Piano Theory Level 7 – Nak Piano Library. Composer: Snell. $5.95. David Carr Glover Piano Library / Piano Theory, Primer Level. Order the Sheet Music Book for David Carr Glover Piano Library / Piano Theory, Primer Level online from the Musicnotes.