Long before we were able to articulate our thoughts, we expressed joys and sorrows by singing. Patterns emerged, becoming language and making the world intelligible. That’s why the ancients depicted Orpheus, demi-god and singer, playing his lyre with animals around him in a peaceable kingdom, and it's why we chose the lyre on the award medallion.
There is an unbroken lineage from that breakthrough Orphic moment, down through all the bards, troubadours, and balladeers to the present. Every literary genre is a tributary of that great river.