noun
also classical pitch
: a tuning standard in use during the latter half of the 18th century of 415 to 429 vibrations per second for A above middle C
noun
also classical pitch
: a tuning standard in use during the latter half of the 18th century of 415 to 429 vibrations per second for A above middle C
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012