the Ancient Greeks might have sung the Illiad's poetry to aid memory. It fits the Dragons's physiology and gives them an interesting little feature to their culture. Because their lore is oral Elder Wyrms have to pass their tales down personally. Maybe ritual sharing of Songs was one of the few (or only) times Dragons from different tribes would meet peacefully. The Elder Wyrm might've won over the Dragons to gather in the Spire with a legendary poetry reading of the Dragon's past losses and rare victories through teamwork.
I'd figure Dragons might kind of fear innovation more than non-value it. They'd surely struggle with the concepts, but they'll have to learn to acknowledge the advantages it offers humanoids. When they do they'll realise how hard it is for them to benefit from it as much and compete. Their lack of hands, sheer size and small numbers make it very hard to match the industry of humanoid species and they're going to learn it's a constant game of catch-up against them from now on. I'd compare it to something like brash overconfident WW1 Generals beginning blissfully ignorant of how industrial warfare has changed things but being absolutely horrified and rushing to figure it out when they witness it in action. Except Dragons don't get Artillery or Machine Guns and it's in slow motion played out over centuries.
They might also really like humanoid musical instrumentation to go along with their Dragon-Song. The traditional playing of music to calm a dragon, but with a more scholarly bent. Early legendary scholars or story tellers in this world are probably Bard-types who spent time playing the drums for a great Dragon-Chorus to learn the ancient history of the world.