Finnish artists Tellervo Kalleinen and Oliver Koctha-Kalleinen hatch the Complaint Choir Project, where ordinary citizens gather to convert their everyday quibbles into lyrics and to exorcise their pent-up negativity through performance. Complaint Choirs take off in Helsinki, Melbourne, Jerusalem, L

Finnish artists Tellervo Kalleinen and Oliver Koctha-Kalleinen hatch the Complaint Choir Project, where ordinary citizens gather to convert their everyday quibbles into lyrics and to exorcise their pent-up negativity through performance. Complaint Choirs take off in Helsinki, Melbourne, Jerusalem, Los Angeles, and Birmingham. But as they attempt to organize choirs in Singapore and Chicago, two very different melodies result.