Matt whitehead, the other half of cyantific, when they were a duo, is the first that springs to my mind...
Pretty sure i've seen burial on a moondance line up... Could be wrong. Was gonna say Misanthrop but he was on at moondance too nye, or their "festive" bash anyway...
Yeah there arent many people who actually know what Burial looks like. Let alone seen him DJ. I think there is only one picture of him online and it still isn't 100% confirmed its him.