Question: what is the difference between straight harp and cross harp?
Answer: Nope, just different ways of playing the diatonic harmonica. In straight harp, or first position, you're playing in the key of C on a C harmonica. ... In cross harp, or second position, you're playing in the key of G on a C harmonica, and the low octave scale is -2 -3″ -3 4 -4 5 -5 6.