Around this time, Turunen also studied with or took part in master classes with musicians such as Stefan Sköld, Anders Eby [sv], Eric Ericson, Oren Brown, and the Hilliard Ensemble.
[3] In 1993, Turunen was one of the founding members of Lumen Valo [fi], an eight-member mixed voice vocal ensemble performing classical and especially early music.
[11] In 1998, Turunen was appointed artistic director of the Academic Female Voice Choir Lyran (Swedish: Akademiska Damkören Lyran), the only female voice choir affiliated with the University of Helsinki, succeeding Johanna Almark-Mannila (née Almark).
[2] A year after the beginning of his tenure, in 2002, Turunen was appointed artistic director of the Tampere-based mixed voice choir Näsin Ääni, later known as Kamarikuoro Näsi.
[15] In 2013, the mixed voice choir Spira Ensemble was formed in Helsinki, appointing Turunen its first artistic director.
[16] Turunen is artistic director of the annual Aurore Renaissance Music Festival in Helsinki, which was arranged for the first time in 2014.
[17] Turunen is a part-time teacher at the DocMus Doctoral School at the Sibelius Academy's Faculty of Classical Music.