DID YOU KNOW…
The Surprising Evolution of 'Concert Pitch'
Before the mid-20th century, there was no universal 'A' note, meaning concert pitch varied significantly across different eras and locations, making many classical pieces sound higher or lower than originally intended.
For centuries, instrument makers and musicians often set their 'A' (the A above middle C) anywhere from 400 Hz to 465 Hz. This lack of standardization created logistical nightmares for touring musicians and made it difficult to compare performances. The push for a uniform pitch gained momentum in the 19th and early 20th centuries, with 440 Hz eventually being adopted as the international standard in 1939 by an international conference and later by ISO in 1955. Despite this, some period ensembles deliberately use lower pitches (e.g., A=415 Hz) to authentically recreate historical performances.
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