The Guitar strap shifter story
I was playing my guitar and trying to play a song that I composed and there was some part of the song that was a lead up high on the neck and I thought if there was a way to quickly adjust my guitar strap to a high position I could play that guitar part perfectly. Also, if I could quickly adjust my guitar strap back down to a lower position for the guitar rhythm part to finish the song that would be a great invention. Now after many years of research and development you can buy this amazing product from this website.
I have to also give credit to the Edison Museum in Fort Myers Florida and my friends at the Edison Inventors Association.