I present the Note Transposition Tool made to help me as a “non-musician” to change the notes of a song but still play the same melody. It is made as a helper tool for making song for the Musical Fidget but can be used for other purposes. 

For example, if you would like to increase all notes by 2 halftones, simply move outer C to align with the inner D. Leave it there and change all notes in your melody to the one of the "inner ring".

The inner ring has Bb, Db…. on both sides, while the outer ring uses the (b) notes on one side and the (#) notes on the other. 

(If anyone knows music theory, please let me know the right words to use to explain what this thing is doing :) )

One version includes a hole for a keychain, making it easy to always keep by your side!

The print profile includes a few color changes to highlight the text. The text will still be visible printed in a single color.

Please enjoy!