The Sound of Stone
Discovered in 1932 on the steep banks of the Amu Darya river near Termez, the Airtam Frieze is a set of limestone blocks that once decorated a Buddhist temple. Dating to the 1st or 2nd century CE, during the Kushan Empire, the carvings depict five female musicians and garland-bearers set against a background of acanthus leaves. The style reflects of its time and place, mixing local Bactrian traditions with Hellenistic and Indian artistic elements.
The frieze is made of a marble-like limestone and consists of multiple blocks, the largest of which shows three musicians playing a drum, a lute, and a harp. Other sections show musicians with a double-flute and cymbals. The figures represent "Heavenly Musicians" showing the Buddhist concept of “five great sounds,” or pancha makhashabda. The entire work originally adorned the entrance to a Buddhist sanctuary in the fortified settlement of Airtam. Today, portions of the frieze are housed in the Hermitage Museum in St. Petersburg, while a copy can be seen at the Termez Archaeological Museum.
Acoustic Archaeology
The importance of the Airtam Frieze lies in the detailed carving of its musical instruments. The carvings are precise enough for acoustic analysis, a field that uses physical evidence to reconstruct the soundscapes of the past. Researchers focused on the stringed instruments, a short lute and a nine-stringed angular harp. Because the sculptors carved the instruments with clear, measurable open-string lengths, scientists could calculate the relative pitches the strings would have produced.
This acoustic reconstruction led to a significant discovery about Kushan-era music. The calculations revealed a seven-note scale, but it was a scale unfamiliar to musicologists. It did not match the diatonic scales of the contemporary Greek world, nor did it align with the musical systems developing in India. The finding suggests the Kushan Empire, a cultural crossroads connecting East and West, developed a unique musical theory independent of its powerful neighbors. The instruments themselves show cultural synthesis: the barrel-shaped drum has Indian origins, while the angular harp is a type found across Central Asia.