In this accordion, the notes that sound when opening the bellows are not the same as when closing it, and unlike the chromatic, it only has notes of specific scales

Like the Piano accordion, it has a chromatic scale of notes, but this accordion has buttons on both sides.

It has a piano keyboard in the right hand, and accompaniment buttons in the left hand. It is used for a wide range of music genres.

In this accordion, the notes that sound when opening are different than when closing, and it has melodic buttons on both sides, it is usually used in genres such as Tango, Chamamé, among others.

Two-row accordion made in Argentina. The notes are positioned according to the «Roque Gonzales» system

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