[Bell Historians] Converting frequencies to notes

[Mark Humphreys]

> And while many people might say "But C sharp is the same as D flat",
clearly
> some rings of bells are described as one and not the other (e.g.
Cripplegate
> is D flat). There may be 12 pitches on a piano, but there are 21 on a
> violin.

Far more than 21 the way I used to play, Dickon :) I'd say a number tending
towards infinity!

Mark