Tetrachords, scales, chromatic, and technique building studies in 7 major keys/units: Concert F, Bb, Eb, Ab, Db, C, G. Bundle includes packet for Flute, Oboe, Bassoon, Bb Clarinet, Bass Clarinet, Alto/Bari Saxophone, Tenor Saxophone, Trumpet, French Horn, Trombone, Euphonium, Tuba.