In verifying that the lowest note on my Edeophone was G below middle C, I was surpised to find that it wasn't. It is F below middle C. The G sharp key sounds F. It is a good strong in tune F, on push and pull, so nothing wrong with the reeds. Might there be a good reason for this substitution, e.g., low F appears more often in music than low G sharp, or --- ? The low G natural as well as all other notes are as expected.
Bill