Often a button accordion, called a Schrammelharmonika, is included.
Bert played the button (bush) accordion, often playing dance tunes for his family after dinner.
The techniques for the two instruments are very difficult, and, to make the transition, he had to abandon the button accordion.
All the above works were written for the diatonic button accordion.
He spent much of his youth playing the button (double row black dot) accordion and various other instruments common in Traditional music.
Various terms for the diatonic button accordion are used in different parts of the English-speaking world.
Anna turned up quietly through the concert, playing button accordion or singing backup.
When he was a child, he learned how to play the button accordion.
He managed to get a great sound from a chromatic button accordion.
Within a few years he had mastered the button accordion and started supplementing the family income with his playing.