Add attribute with note and octave to each key

[brylie]

It might be useful to add metadata to each key indicating the note and octave the key represents. E.g. this could be used in a click event listener to create a note sequence from user input.

[jutunen]

Hello and thank you for your suggestion. Interactivity features would indeed be nice, but component's current design does not allow it to be done easily. Major refactoring and re-writing would be required.

[brylie]

Thanks for the quick reply. Hopefully a clear and simple way will emerge to add metadata to the keys :-)