About Theory Lessons, Level 4
By James Bastien. For Piano. Bastien Piano. Bastien Piano Library. Theory. Level: Level 4. Music Book. Published by Neil A. Kjos Music Company. (WP10)

About Bastien Piano Library
The Bastien Piano Library is an integrated course of study containing method books, related theory and technic books, and a wide variety of supplementary materials, including Music Flashcards, specifically correlated solo sight reading books, and note speller. The Bastien Piano Library also offers the option of beginning with either a "contemporary" approach (featuring pre-staff notation and first staff reading in G, then C, then middle C) or "traditional" approach (featuring Middle C reading and the C five-finger position).