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Are you Hal Crook, author of the books below?
How To Improvise by Hal Crook Ready, Aim, Improvise! by Hal Crook Beyond Time and Changes by Hal Crook A BRIEF MADNESS by Hal Crook How to Comp by Hal Crook How to Comp by Hal Crook Méthodes et pédagogie ADVANCE MUSIC CROOK H. - READY, AIM, IM... by Hal Crook Creative Comping for Improvisation, Vol 2 by Hal Crook How To Comp by Hal Crook Ready, Aim, Improvise! by Hal Crook


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