I've designed an extension to allow playing low Bb on English horns that don't have a Bb key. My design is much faster to switch between B and Bb than traditional twist ring extensions. It's the next best thing to having the key on your horn.
I've designed an extension to allow playing low Bb on English horns that don't have a Bb key. My design is much faster to switch between B and Bb than traditional twist ring extensions. It's the next best thing to having the key on your horn.