Slonimsky's Thesaurus of Scales and Melodic Patterns is the gift that just keeps giving. There is so much great material in this book that can be adapted for Jazz improvisation. It is arguable that there would have never been a Giant Steps or Countdown if it were not for this great book. There is still so much to be learned from the TOSAMP and just about everything in it sounds super hip. Markos has extracted some lines from the TOSAMP and created some nice exercises for saxophone (or other instruments). Thanks Markos!