Opera XXI is an association of theatres, festivals and regular opera seasons in Spain. It was promoted by the Gran Teatre del Liceu and Madrid's Teatro Real with the following objectives:
On 12 February 2005, the Teatre Principal in Maó, Spain's oldest opera house, provided the venue for the association's founding meeting. Originally set up by 20 theatres, festivals and seasons, it currently has 32 members.
More information: Opera XXI