(Music Instruction). Imagine if you could HEAR a musical phrase, VISUALIZE its layout on your instrument by "seeing" and "feeling" the fingerings and/or embouchure in your mind's eye, KNOW the names of the notes as well as the degrees of the key and FEEL the dynamics you want to include. All simultaneously, in a millisecond, and without moving a muscle ... and in any key Welcome to the twelve-key approach for all instruments and levels. Twelve-key...