Structure

The base for the present structure was founded around 1980. Wind orchestra Auletes was founded out of a wind kwintet and a flute kwartet. String orchestra Ma Non Troppo was established in 1980; a succesful choir workshop resulted in the formation of the mixed choir Vokollage. In 1986 Sambuca, the recorder ensemble, also joins the association.
The string orchestra becomes a chamber orchestra in 2002, and was renamed to a symphonic orchestra in 2009. 
Since 2002, ESMG Quadrivium consists of the following associations: wind orchestra Auletes, symphonic orchestra Ensuite, mixed choir Vokollage and recorder ensemble Sambuca. 

Besides the different orchestras and choir, Quadrivium also owns three pianos and a grand piano and has several rehearsal rooms which can be used 24h a day by members for individual or ensemble practice.Members which are not in a choir or orchestra, are called pianomembers.

ExQuus

ExQuus is the organization for ex-members of Quadrivium. More information can be found at www.exquus.nl.