Grunnsonic is a free showcase festival of Groningen-based musical talent, that takes place during ESNS. Grunnsonic, a joint initiative between ESNS and POPgroningen, offers Groningen-based talent the chance to present themselves during the gigantic happening that is ESNS. Being a free event, Grunnsonic gives music lovers, who don't have an ESNS ticket or want to enjoy even more music, the opportunity to significantly upgrade their week. ESNS and POPgroningen allow local acts to present themselves to the general public and the music professionals present at ESNS. This year Grunnsonic takes place from January 17th until January 19th at Het Pakhuis, Warhol, Het Concerthuis and KLUP DE DAG.