What is the Dorabella cipher?

cryptology/dorabella New

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Problem

What is the Dorabella cipher?

[ Editor: problem statement reconstructed from the postings. ]

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The Dorabella cipher is comprised of a note sent by the English composer
Sir Edward Elgar at the end of the 19th century to a young female friend
named Dorabella .... the cipher has resisted all attempts at decryption
and remains unsolved to this day.

For details of the cipher itself and what is known about the
circumstances surrounding it, check out
http://www.geocities.com/Vienna/4056/cipher.html

-- rec-puzzles.org wiki contributor (138.77.2.131)