Telephone #  601-646-2767  answered during office hours (9am-5pm Mon-Fri CST)  


John Roberts inventor of the RESOTUNE and holds 8 other US Patents related to his musical equipment industry work.

any questions or comments, please email

Postal Address:  

Circular Science

PO Box 297

Hickory, MS 39332 USA

Shipping Address:  

Circular Science

7489 Hwy 503 #297

Hickory, MS 39332 USA

RESOTUNE Technology is available for license to a competent manufacturer. The patent has expired so that is free to use, but there is much unpublished proprietary technology of value to exchange.