From Chris Gekker’s foreword:

There are no inherently difficult keys in music, only unfamiliar ones. A similar statement could be made for rhythms. Challenging areas of human learning generally begin with awkward difficulty and become, with studied practice, manageably approachable. The core requirement in this learning process is constructive and sufficient exposure and experience – early study material should be realistically practical and clearly understood. Brennan Rudy’s book Introductor...