Digital music, c. 1500

A sequence of O's, I's and II's, which could be a musical score, has been found on a 16th-century wood medallion at Stirling Castle in Scotland. A harpist is at work trying to decipher the tune, the BBC reports:

http://news.bbc.co.uk/2/hi/uk_news/scotland/tayside_and_central/8222727.stm