Harp
Concert harp

The concert harp is a technologically advanced instrument, particularly distinguished by its use of pedals, foot-controlled levers which can alter the pitch of given strings, making it chromatic and thus able to play a wide body of classical repertoire. The pedal harp contains seven pedals that each affect the tuning of all strings of one pitch-class. The pedals, from left to right, are D, C, B on the left side and E, F, G, A on the right. Pedals were first introduced in 1697 by Jakob Hochbrucker of Bavaria. In 1811 these were upgraded to the "double action" pedal system patented by Sébastien Erard.

The addition of pedals broadened the harp's abilities, allowing its gradual entry into the classical orchestra, largely beginning in the 19th century. The harp played little or no role in early classical music (being used only a handful of times by major composers such as Mozart and Beethoven), and its usage by Cesar Franck in his Symphony in D minor (1888) was described as "revolutionary" despite some body of prior classical usage. In the 20th century, the pedal harp found use outside of classical music, entering musical comedy films in 1929 with Arthur "Harpo" Marx, jazz with Casper Reardon in 1934, the Beatles 1967 single " She's Leaving Home ", and several works by Björk which featured harpist Zeena Parkins. In the early 1980s, Swiss harpist Andreas Vollenweider exposed the concert harp to large new audiences with his popular new age/jazz albums and concert performances.
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