Concert Pitch tunes to a frequency of A-440. It is the A above Middle C, known as A4. It is an internationally recognized standard. But more and more, musicians are experimenting with other reference pitches. The Beatles, for example, tuned to A-432 Hz. And some orchestral groups use A-444. We offer a selection of 3 different Reference Fork pitches. If you would like a different frequency, we can custom make one to your specifications.
All of our high quality tuning forks are Made in the USA. Each fork is triple tuned for accuracy of +/- .25% Hz. A protective velvet pouch is included.