Voggenreiter, Saxophon Improvisation, By Dirko Juckem: The most important scales,chords,licks and tricks step-by-step for improvisation, With pattern and warm-ups, From Rock,Blues,Reggae,Jazz,Soul and Pop, For all Bb and Eb instruments (saxophones,clarinet as well as trumpet), ISBN 978-3-8024-0345-3, 152 pages, Incl.Playback-CD, In German language, Contents: Teil 1: Mollakkorde, Dominantseptakkorde, Durakkorde, Teil 2: Erweiterte Akkorde, Akkordverwandschaften, Teil 3: Akkorde und Scales in allen Tonarten, Tonleiterübungen