From a low tone to progresively becoming a repeating hopeful tune, truly befitting for two friends who've reunited again.

Yume no Hero - Norio Sakai

Playmaker and AI Theme - Yu-Gi-Oh! Duel Links

Full version of the Dawntrail main theme.

All credit to Masayoshi Soken and The Primals

FROM THE ORIGINAL: AURORA
https://on.soundcloud.com/qC4xu1Ptr3gGUgwvqw