(Vocal Collection). This great book/audio pack is an effective and fun way to improve your vocal technique and internalize the basic scales used in jazz. Designed for jazz singers, students of improvisation or ear training, choir directors and teachers of vocal jazz, it''s an enjoyable way to learn the modes thoroughly and discover their possibilities. The audio includes vocal warm-ups suitable for all levels, exercises in each mode of the major scale, rhythm section tracks without vocals for improvisation, and more. The book includes transcriptions of the warm-ups, a brief history of modal jazz, theory basics, the modes of the major scale, scat syllables, transcriptions of the modal workouts, and more. Audio is accessed online using the unique code inside the book and can be streamed or downloaded. The audio files include PLAYBACK+, a multi-functional audio player that allows you to slow down audio without changing pitch, set loop points, change keys, and pan left or right.