The lessons provided by Harmonica University are designed for the diatonic harmonica(or 10 hole harmonica, or blues harmonica) in the key of C.
The lessons provided by Harmonica University are designed for the diatonic harmonica(or 10 hole harmonica, or blues harmonica) in the key of C.
草堂的口琴课程是针对10孔口琴的，都是以C调10孔口琴为例。