Heikki Rainio is a versatile artist whose work spans across music and visual arts. As a musician, he has collaborated with notable choirs like Kamarikuoro Adastra and contributed to evocative compositions such as "Kun joulu valkeneepi" and "Suo risti vain." His performances often feature alongside esteemed musicians like Hannu Ilola and Visa Turunen, showcasing his talent as a tenor. Beyond music, Rainio's artistic endeavors include exhibitions like "Rainio & Roberts" at Taide- ja museokeskus Sinkka, where his work is celebrated alongside critical essays and interviews from leading figures in the Nordic art scene. His diverse portfolio reflects a deep engagement with cultural synthesis and artistic exploration.