Since then, the quartet has sung at many venues in the Netherlands in the Early Music Network series, made successful tours to France and Spain and has performed at the Holland Early Music Festival, the Flanders Festival, Musica Flandrica, the Tagen der alten Musik in Innsbruck, the Ambronay Festival, the Festival des Cathédrales de Picardie in Amiens, the Festival de Musique Ancienne à l’Institut Néerlandais in Paris, the Radovljica Festival in Slovenia and the Festival of Early Music in Aldenbiesen, Belgium. The quartet has also given workshops in ensemble singing at the Enschede Conservatory and at the Hochschule für Musik in Heek, Germany.

The Egidius Kwartet has released four CD’s: Venus-ghejancksel (The Plaint of Venus), Leal Amour, Flemish composers at the court of Philip II, Tota Vita, Music for Charles V by Canis & Payen and, recently, the double CD Tielman Susato, het Ierste en Tweetste Musyck Boexken, the first integral recording of the 55 songs from the Musyck Boexkens. In 2003/2004, the quartet will present the forgotten oeuvre of Gheerkin de Hondt. In 2001, the Egidius Consort was formed to provide instrumental backing in various programmes, including Susato’s Musyck Boexkens.

In addition to performing Renaissance music, the Egidius Kwartet aims to continue a tradition in which singers are ambassadors of new music from their country. Their 20th century programme Egidius sings Egidius, with pieces written by Dutch and Flemish composers - some of which are dedicated to the quartet - is to be released on CD in 2003. Together with Brisk Recorder Quartet Amsterdam, the Egidius Quartet devised a programme called Triptica, that combines music by contemporary Dutch composers and 14th century ars subtilior works.

In order to avoid any semblance of orthodoxy, every deviation from the primary mission is regarded as a welcome diversion. For example, the quartet performs a Schubert programme with fortepianist Arthur Schoonderwoerd and soprano Johannette Zomer and sang Kurt Weill’s Die sieben Todsünden with the Rotterdam Philharmonic Orchestra and HK Gruber. In 2002 the quartet made its debut in the Amsterdam Concertgebouw in a literary-musical programme with writer Hans Maarten van den Brink and collaborated in a semi-scenic production of Lully’s opera Le Bourgeois Gentilhomme with Combattimento Consort Amsterdam.

The Spanish soprano Maria Luz Alvarez joins the quartet in many programmes and some recordings.