The importance of this exhibition is due to the musical vocation of the Regional Museum of Querétaro and the great labor of the psaltery player: Alejandra Barrientos Aguilar, who has proposed the psaltery as a concert instrument and for the musical education.

The history of psaltery in Querétaro is made known towards the late 19th century, with the creation of the band of the 19th Battalion of Querétaro on 1886. The picture comes from 1915, however, after the times of the Revolution, psaltery in Querétaro lost its way.