| Named_Collection | Richard Demarco |
| Title | Andy's notes on Sound in Space |
| Level | Temporary |
| Date | 1970 |
| Ref_No | GMA A37/1/0550 |
| Description | Primarily budgets and other financial/administrative documents; some correspondence with Keith Critchlow; The Matrix performance programme |
| Extent | 49 pieces |
| Repository | Scottish National Gallery of Modern Art Archive |