Jack,
I use a very inexpensive program called Ripvinyl, which produces a WAV file for any music ( or indeed any other sound ) you can play on your PC. If you then copy the WAV file to a CD it can be played on virtually any standard CD player.
You could send the WAV file as an attachment to an Email, but it might be a bit big in size for anyone without Broadband.
You can very quickly download a free trial version of Ripvinyl. Have a look at
www.ripvinyl.com Although it looks primarily aimed at people wanting to copy vinyl records, it works easily with Noteworthy playbacks.
Tony