The ensemble for early music Musica Aeterna was formed in 1973 from the initiative of Prof. Ján Albrecht, who at first systematically led future professional musicians in the music of Gothic, Renaissance and Baroque periods. Study of composition of the mentioned eras eventually led to the formation of a specialized ensemble for early music, which in 1989 finally switched to performing on original instruments from the 17th and 18th centuries, or respectively their copies. The focus of its repertoire is European music and music of Central Europe, respectively music of the 17th and 18th centuries of the Slovak region. Between 1986 – 2005 the ensemble was incorporated into the Slovak Philharmonic. The artistic director and leader of the ensemble is the violinist Peter Zajíček.
In addition to concerts in Bratislava and Slovakia, Musica Aeterna regularly performs abroad, with a notable long-term cooperation with the Centre for Baroque Music at Versailles, and performances at major music festivals such as Festival va Vlaanderen, Holland Festival of Early Music Utrecht, Festival Wiener Klassik, Carinthischer Sommer Villach, Régi zenei napok Sopron, Czech International Festivities of Early Music Prague, Bach Tage Berlin, Swedish Baroque Festival, Bratislava Music Days and others.
Many prominent specialists for the Early music have cooperated with the ensemble: Alfredo Bernardini, Christophe Coin, Paul Colléaux, Richard Fuller, Martin Gester, Paul Goodwin, Edward Higginbottom, John Holloway, Jan Kleinbussink, Catherine Mackintosh, Charles Medlam, Siegfried Pank, Andrew Parrott, Christophe Rousset, Olivier Schneebeli, Simon Standage, Melvyn Tan, John Toll.
From previously released CDs, many have been awarded special awards, e. g. Diapason d'Or in 1994 and for the complete Concerti Grossi by Georg Muffat in 1995. International critics value their artistic results even higher and the group ranks among the best ensembles of its kind in Europe.