After some feedback on my harp twins post, I thought I’d say something about the history of the harp. It’s one of the oldest musical instruments (following the flute and the drum). Harps are known to go back to 3500 BC, in Ur. Harp design has varied considerably over the 5500 years since then.
Harpist depicted on the Standard of Ur, c. 2500 BC
Later harps were of particular importance to the Celtic people, and the harp is still a symbol of Ireland today.
The medieval Queen Mary harp, c. 1400s (photo: David Monniaux)
A limitation of harps has been that the strings correspond only to the white keys on the piano. A significant improvement was the pedal harp – initially the single-action version, and from 1810 the double-action version. The double-action pedal harp is typically tuned to C♭ major, the key of 7 flats. There are 7 pedals, with e.g. the C pedal connecting to all the C♭ strings. Using the pedal can effectively shorten all the strings in this group to give either C♮ or C♯ (and the same for other groups of notes).
The pedal harp is the main concert instrument today. Garrison Keillor once described the instrument as “an instrument for a saint” because “it takes fourteen hours to tune a harp, which remains in tune for about twenty minutes, or until somebody opens the door.”
Smaller harps (including modern electric harps, like the one above) use levers to modify individual strings (which makes key changes much more difficult than with the pedal harp). Electric harps weighing up to 8 kg are described as “wearable,” which reminds me a little of this 11 kg grand-daddy of the laptop.