The original "Concha de la música" was built in 1953 and coexisted for a short period of time with an octagonal for a short time with an octagonal pavilion used by the municipal band for its concerts. for its concerts. This pavilion had been reused for this purpose since the beginning of the 20th century. the beginning of the 20th century, as it was previously the old structure of the Fuente Agria. Agria. The marquee for the music band was given the popular name of concha (shell) because of its shape, which gave it exceptional acoustics. In addition to concerts, it was also used for other local cultural activities. and there was a library on the ground floor. Later the small library was replaced by public toilets. replaced by public toilets. At the beginning of the 1990s, the shell was replaced by a more modern one, as part of the complete remodelling of the modern one, as part of the complete remodelling of the Paseo de San Gregorio.