Melodic minor is the parent of Lydian Dominant, the altered scale, and most of the sounds that separate fusion playing from rock playing. It's also the scale guitarists most often understand on paper and can least often use, because knowing that the altered scale is the seventh mode of melodic minor doesn't put it under your fingers.
A practice guide, not a theory bookSpecific one- and two-octave approaches, worked vertically and horizontally, applied to melodic minor and all its modes in every key. The aim is a complete picture of each mode across the whole neck - so that reaching for Lydian Dominant over a dominant chord is a thing you do rather than a thing you calculate.
Ninety days, honestlyAbout three months of committed daily practice. This is the most demanding volume in the series and the one that pays off most obviously, because these sounds are rare enough on guitar that having them fluent is genuinely distinguishing.
Who it's forPlayers with the major scale modes solid who want the jazz and fusion end of the harmonic spectrum. Guitarists who know what the altered scale is and can't play it in twelve keys.
Book 4 of Scale Fluency. Take it after the major scale modes - the patterns carry over from the earlier volumes.