50 of the baddest, bopping-est, funkiest and bluesiest licks you must know The path from pentatonic sameness to heavy jazzed blues cat-itude often appears strewn with mystifying theoretical explanations and effete bossa renditions of "The Days of Wine and Roses." Feh! David Hamburger's 50 Jazz-Blues Licks You MUST Know cuts right to the chase, offering up some of the baddest, bopping-est, funkiest and bluesiest ways to navigate through any shuffle, boogaloo, minor blues or jazz-blues chord changes.