Musicianship For the Older Beginner Organist, Level 1 composed by James Bastien. For organ. Theory/Technic/Sight Reading. Bastien Older Beginner Organ Library. Level 1. Music book. Published by Neil A. Kjos Music Company (KJ.WR3).
Companion studies in theory, technique, and sight reading closely correlated to the METHOD for the most complete musical understanding.