a married Victorian composer sent a coded love-note nobody can read — found it on a music forum

Pulled this off a classical-music message board where it was weirdly off-topic and getting no replies, so rehoming it here where people actually like ciphers. It's the Dorabella Cipher. Edward Elgar — yeah, the 'Pomp and Circumstance' guy — in July 1897 sends a normal polite letter to a young woman……