Search results for accessories-for-musical-instruments are below:

https://blackdiamondstrings.com/

We produce high-end boutique strings for most fretted instruments that are unequaled in both tone and strength -Black Diamond Strings

https://www.bariwoodwind.com/

Bari Woodwind manufactures mouthpieces of the highest quality achieving a unique coveted sound. We believe the mouthpiece is very important as it is the direct link between the player and the instrument. A Bari mouthpiece is easy to blow, plays in tune, and is very stable, consistently producing clean tones without difficulty and producing a sound that is clear and resonant. -Bari Woodwind

Made in the USA -Bari Woodwind