The Lutheran Ceili Orchestra (TLCO) was founded by Pastor Mark Jeske and music director Jeff Krumbein in Milwaukee, Wisconsin in the 1990s. Originally assembled from members of St Marcus Lutheran Church to accompany a Christian worship service around St Patty's Day, the group has grown to include members Lutheran churches from all over Wisconsin and tours across the country. Their unique mission is to lead meaningful, edifying liturgical worship while bringing forward the voice of the ancient Celtic Christian. Their series of Celtic Services attempts to preserve the traditions,