Knowing Where You Are - Tactile Reference

It's true that the harmonica is a blind person's instrumental, though we do have our hands. Your lips, jaw and cheek touch your hands while playing the harmonica, giving you a tactile reference. Experiment by playing across the range of your harmonica and noting where your face is in relation to your hands; you may find this helpful when working on new passages that require large leaps. As you practice those challenging passages, over time your muscle memory will take over and you won't need that tactile reference, but it can be helpful at first.