| RefNo | AP/69/7/2 | 
| Level | Item | 
| Title | Unpublished diagrams, 'Outline of the practical application of musical harmony to colours' by John Denis Macdonald | 
| Date | 1893 | 
| Description | Three pages of diagrams in coloured ink, labelled diagrams I-VII, which show notes on the treble and bass clefs assigned to the colours of the rainbow. 
 Subject: Music / Mathematics
 
 Received 25 March 1893.
 | 
| Extent | 3p | 
| Format | Diagram | 
| PhysicalDescription | Ink on paper | 
| AccessStatus | Open | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA3682 | Macdonald; Sir; John Denis (1826 - 1908) | 1826 - 1908 |