This is a set of statistics released by the DCMS about the export of 'objects of cultural interest'.
Cultural Goods are
Certain cultural objects more than 50 years of age and valued above specified financial thres ...
An archive site (appears to be HTML only, with no raw data available) covering the history of the Proms classical music festival right back to 1895.
Each concert entry has a list of works performed, and the soloists / orchestras.
The archive is searchable by composer and works, decade and year ('s ...
The CASE (Culture and Sport Evidence) database is "a unique and comprehensive resource for those working in culture and sport".
It currently holds over 12,000 studies from across the CASE sectors (sport, arts, heritage, museums, galleries, libraries and archives), undertaken internationally and wi ...
A volunteer-run catalogue of metadata about published music, the scope of this database is huge.