The collection, organized in four chronological segments (A, B, C and D), offers an abundance of sources for vocal and instrumental music, sacred and secular.
The original manuscripts are located in the British Library.
In MSPAL, this collection's call number is PA LIB REF M2.I93.
Section B contains music manuscripts from 1720 through 1740.
Section C contains music manuscripts from 1740 through 1770.
Section D contains music manuscripts from 1770 through 1820.