Twelve etudes dealing with a different aspect of improvising over harmonic material in 56 pages. Each etude is in fact a transcribed solo that exposes a certain subject as clear as possible. The solo is analyzed and preliminary exercises are given. All transcriptions are detailed and with the correct fingerings. A true insight into the process of soloing. The accompanying CD exposes the recorded solos in a trio setting, as well as having the tracks minus-bass available.