The organ of the Monastery of Santa Isabel La Real was built in 1779 by the organ builder Antonio José de Quesada, who was also organist of the Collegiate Church of Nuestro Salvador from 1769 until his death in 1782. The new instrument, which took advantage of some materials from the old organ, cost 7,000 reales, and the delivery was signed in 1780. Twelve years later, Fernando Antonio de Madrid, builder of the great organ of the Jaén Cathedral, carried out an important renovation, moving the keyboard to the front of the instrument (first it was located in the back, as in other conventual organs). At the beginning of the 19th century it seems that it was in poor condition, so in 1806 a new intervention was undertaken, less successful than the previous one, by Miguel González Aurioles. The recent restoration, which has returned it to its state prior to the González Aurioles reform, has been made by Federico Acitores in 2019. It is a typical small instrument of Iberian organ building from the second half of the 18t century, whose dimensions and sound are perfectly adequate and proportionate to the space that houses it.

• Organ built by Antonio José de Quesada in 1779.
• Reformed by Fernando Antonio de Madrid in 1791. 
• Interventions by Miguel González Aurioles (1806) and others. 
• Restoration by Federico Acitores in 2019.

One keyboard of 45 keys (C-c3). Short octave. Divided stops between c1 and c#1.