It is well-known that J. S. Bach liked to mess about with numbers and other patterns in his music. There are several instances in which he has spelt his own surname using notes, bearing in mind that in the German scale, what we call B flat was known as B, and B natural as H, so B-A-C-H becomes quite possible.
What I didn't realise until this evening was that Bach was born on 21st March 1685.
21/3/85.
A B C D E F G H
1 2 3 4 5 6 7 8
Now, what do the first 4 digits of his date of birth spell?