The Airwave Harmonica is Super Fun! Here's Why: The harmonica is the only instrument you can play simply by breathing in and out of it. You can play right away and sound really good in just a few minutes! Other harmonicas are really small and hard to hold, but the new Suzuki Airwave harmonica has a cool modern design that's easy to hold and easy to play! And there are no metal parts on the outside to scratch you or get hung up on.