The accordion, also known as the Zierharmonika, is a hand-drawn instrument in which the sound is generated by free-swinging reeds when pulling or pushing the bellows. Not only single notes, but also chords can be created with it. The accordion is a versatile instrument that is great fun both solo and with other musicians. With the button accordion, not only the bass, but also the treble area is played with buttons. In contrast to the key accordion, this area is equipped with a keyboard. The Styrian harmonica is particularly popular in alpine folk music due to its special structure and the strong-sounding helicon basses as well as the common tone.