Following up on their recent exhibition and residency at London's Raven Row gallery, the sound art activist collective Ultra-red will be presenting a series of informal seminars about community organising along with a presentation of their own work from the past 15 years. School Of Echoes will focus on the question "what is the sound of community organising?" and invites local artists, community organisers, students, education and art workers to meet and share ideas with them. Dundee Duncan Of Jordanstone, 152 Nethergate, 7 December, 6-8PM, open to all and free. Glasgow, various venues, 8 & 9 December, 4-6PM, open to all and free.