Ron Westray 
Jazz Theory — Contemporary Improvisation, Transcription and Composition [PDF ebook] 

This course is designed to present and develop jazz arranging and compositional principles. In preparation for successful improvisation, composing and transcription, a wide range of theoretical topics are presented.The stylistic considerations of jazz improvisation and composition require an extensive and working knowledge of jazz theory, and mastery of diatonic, bitonal, poly-tonal and atonal theoretical maximums and processes — including the refining of the [imitation] transcription process towards theoretical justification and conventional usage.