Patent ID: 9747875
Date: 2017-08-29
CPC Classifications: G10D,G10H

Claim:
1. An accordion comprising: a right hand play side; a left hand play side; a bellow provided between the right hand play side and the left hand play side; four rows of buttons provided on at least one of the right hand play side and the left hand play side; and two rows of buttons provided adjacent to the bellow side of the four rows of buttons or opposite bellow side of the four rows of buttons, the four rows of buttons include: a first column to which first continuous four pitches are assigned; a second column, provided adjacent to the first column, to which second continuous four pitches are assigned, the second continuous four pitches being adjacent to the first continuous four pitches; and a third column, provided adjacent to the second column, to which third continuous four pitches are assigned, the third continuous four pitches being adjacent to the second continuous four pitches; the two rows of buttons include: a first column, provided adjacent to the first column of the four rows of buttons, to which first continuous two pitches are assigned, the first continuous two pitches being continuous from or to the first continuous four pitches; a second column, provided adjacent to the second column of the four rows of buttons, to which second continuous two pitches are assigned, the second continuous two pitches being continuous from or to the second continuous four pitches; and a third column, provided adjacent to the third column of the four rows of buttons, to which third continuous two pitches are assigned, the third continuous two pitches being continuous from or to the third continuous four pitches.