I have digitised the first of the three sides I have of these old Dolmetsch transcription discs. I chose the “test” side to do first as I assumed it would be the least interesting.
Actually it turned out to be really fascinating. There are 5 tracks. The first starts with the voice of Arnold Dolmetsch himself, announcing his performance of Lord Salisbury’s Pavan on the Clavichord. At the end he laughs and says “hopeless!”
Then we have three tracks of Mabel playing the early Irish harp. Two of them are fragments of An Seann Triucha (the Old Trugh) – from Bunting’s Ancient Music of Ireland, 1809, p.6.
I do not recognise the third track. I wonder if it is some Welsh music from Robert ap Huw.
You can listen to these tracks here: