Before getting launched on her conducting career, Seppinen had already made a name for herself as a choir leader renowned for her innovative repertoire and her break with the traditional concert format. She has collaborated with many choirs, among them the world-famous Thomanerchor Leipzig. Her concerts have taken her to many countries in Europe, the United States and Argentina. Since 2009, she has been artistic director of the Academic Female Voice Choir Lyran. As a singer, mezzo-soprano Jutta Seppinen has focused particularly on the performance of modern repertoire. She has premiered many works composed especially for her and has worked with many composers and ensembles. In spring 2013 she was the soloist with the Finnish Radio Symphony Orchestra.
Seppinen is a founder of a new multi art group CHANGEnsemble. CHANGEnsemble tries to find new ways of combining music making with other art forms and it wants in its art to talk about difficult and untold themes. Season 2019 Seppinen will conduct Kuopio city Orchestra, Joensuu City Orhestra, Helsinki Philharmonic Orchestra, Wegelius Kammarstråkar and CHANGEnsemble.