oldest spectrogram?

["rapsac" cstroem]

Thought this could interest someone on this list. It's a painting on an 
old pot (1500 years old if I remember correctly) which appears to be a 
visual representation of bird song. Seen at the museum of archaeology in 
Istanbul.

Link to photo: http://flic.kr/p/qGgyr8









"While a picture is worth a thousand words, a 
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.



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