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).

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.

If you're not sure about the harmonica type, start with a standard 10-hole diatonic. You can't go wrong with the Lee Oskar Major Diatonic or the Hohner Special 20 (preferably in the key of "C"), both are great for players just starting out.