Flute, Oboe, Bassoon, Clarinet in Bb, Alto Clarinet, Bass Clarinet, Alto Saxophone, Tenor Saxophone, Baritone Saxophone, Trumpet in Bb, Horn, Tenor, Euphonium, Tuba, Percussion, Keyboard Percussion The Skill Builders books are used to teach the basics of Tone Production (breathing and embouchure drills), Balance and Blend (balance drills), Intonation (intonation drill and survey), Technique (technique and articulation drills), and Rhythm (rhythm drills). Skill Builders Book 2 serves as a supplementary text which reinforces concepts emphasized in the Sounds Spectacular Band Course Book 2 (O5226). Additionally, Skill Builders can be used as instructional material for individual lessons, small classes, or full band, as a warm-up book for rehearsal with young ensembles, and as sight-reading material.