I've seen this shape a few times, but what exactly does it represents?
1the lyra is the symbol for music: banners, uniforms, concert programs, flyers etc: google.com/…– Albrecht HügliMay 6, 2019 at 15:02
It's a lyre of some kind:
A lot of ancient civilizations used variations of this instrument, especially the ancient Greeks. It's similar to a small harp .