The harp has 47 strings grouped in pitch-classes: C, D, E, F, G, A, B. Each pitch class can be tuned flat, natural, or sharp by shifting a pedal.
The range is from C1 - G7, and there are distinct registers on the harp, as follows:

Central register:
Low register:
High register:

Click notes to hear the harp range:

Harp range damped

Harp range damped

The Orchestra: A User's Manual is a free resource and will remain so. It still receives between 8,000 and 16,000 unique visits per month from all over the world. See the testimonials. Thanks to all the donations, I have been able to create this responsive re-design. But the movies and sound clips recorded in 2004 do show their age. I would really like to re-record everything and add many more techniques, especially for solo and ensemble writing. I estimate this will cost around £30,000. If you know a source of such funds, please contact me: a.hugill [at]