Harp

The harp is a stringed musical instrument that
has a number of individual strings running at
an angle to its soundboard.
The concert harp uses a series of pedals, foot-
controlled devices which can alter the pitch
of given strings, making it fully chromatic.
The addition of pedals broadened the harp's
abilities, allowing its gradual entry into the
classical orchestra, largely beginning in the
19th century.