Reason — Piano Sheet Music

Mobile Suit Gundam SEED · Nami Tamaki

Full performance & tutorial video.

About this arrangement

“Reason” became widely known alongside “Mobile Suit Gundam SEED,” where it serves as the theme song, performed by Nami Tamaki.

Many fans first encountered the song through the story itself, and it remains tied to those memorable scenes.

Fingering and layout have been adjusted for beginners, making this a great first song to learn.

The included tutorial video walks through the trickier passages in detail — a great pick for fans of “Mobile Suit Gundam SEED” who want to play it on piano.

Sheet details