transpose music key

[Nicky]

An odd request I know, but has anyone written code or functions t
transpose music from one key to another?. As this is basically
mathematical process it should be something Excel can do, but my musi
skills are too rusty to manage

 

[Jerry W. Lewis]

Both your input and your output would have to be in nonstandard
notation; so why would you want to do it in Excel instead of a music
notation package, where transposing would be basic functionality and you
could use standard notation?

Jerry