I just found something really cool.
A bone tablet was discovered on Berezan Island where the Black Sea and the Dneiper meet, a short distance from Olbia. It contains a cult hymn to Apollon with some unusual epithets, a sequence of mystical numbers, and most importantly – something that appears to be actual musical notation!
Translation of the text:
1 EBANBOYÄIÄ A A A
2 A A A A À A A A A
3 Bearer of victory of Boreas (the North wind)
4 Seven – She-wolf without strength,
5 Seventy – Mighty, powerful lion,
6 Seven hundred – Most loved Bowbearer,
7 Mighty gift – a Healer,
8 Seven thousand – Wise dolphin.
9 Blessed peace!
10 I bless the City!
11 There I bear remembrance to Leto.
13 To Apollo,
14 The Didymaian,
15 The Milesian.
16 Bearer of luck of the mother (or the motherland),
17 Bearer of victory of Boreas (the North wind).
And if you’re interested in Apollon’s presence in the region, check out Patrick Bisaillon’s The cult of Apollo in the Milesian colonies along the coast of the Black Sea: an inventory of archaeological data.