Holding his spectacles in his right hand, the subject of this portrait gazes at the viewer. He has momentarily left the composition he is working on, which is dated 1844 and is partially legible. It is precisely this element that enabled the subject to be identified recently as Urbano Aspa, a composer of religious music who was also a close friend of the painter’s family. In the background is the fine silver inkstand that Aspa used in his work, including two feather pens and, probably, a metal nib pen.

Díaz Pascual, Concha, Identificando un personaje a través de un objeto de su retrato. Cuaderno de Sofonisba, http://cuadernodesofonisba.blogspot.com.es/, 2015.08.27