From Heritage Music Press

Just as you would take time to warm up your voice, these simple songs and patterns give students a chance to warm up their instrument playing skills by investing 5-10 minutes each class period. By using the Sing-Along Guide, you can easily choose from the 30 warm-ups (in specific keys, chord progressions, and/or patterns) which you can then develop and utilize as accompaniments to the 25 traditional songs (also included).