With regular deliberate practice, you can expect to be playing simple pop tunes within around 3 months. Within 6 to 12 months, your technique will improve and you will probably be able to work on bending notes (a very important skill for getting the best out of a harmonica).

A mouth organ has 2 reeds per note with a set vibrato. A harmonica has 1 high quality reed per note that allows the player to create his own vibrato at a speed that suits the music being played. The harmonica also has a chromatic lever on one end, which means that you have the sharps and flats.

The harmonica is a small, portable instrument that is easy to pick up and play. However, it can be surprisingly difficult to master. This is because the harmonica requires a great deal of breath control, coordination, and embouchure mastery.