In one of the most emblematic spaces of the world, the organ of the presbytery is the first of the diverse organs that are needed to sound a space as big as this one.

As the only organ, it performs functions such as liturgical accompaniment, cultural events and the sound of space throughout the day thanks to an automatic reproduction system that sounds the organ every half hour with the pieces that its titular organist, Juan de la Rubia has scheduled.

Its 26 registers must fill the gigantic space with music, for this reason its harmonization is of great presence.
It was designed to withstand an extremely dirty and dusty environment due to the ongoing works in the temple which causes much dirt to be deposited both inside the instrument and in its ducts, channels, windchests and pipes.
Even so, this instrument perfectly supports this anomalous situation for an organ and a very intense daily use.