Gintama - Tetsu wo Tataki Nagaratemee no Tamashii wo Tatakiagero piano

I don’t have sheet music for this, cuz I play it by ear if you need synthesia tutorial or something, just search it and there’s one in utube Btw.. it’s been quite a long time since I try to make some cover and I’m thinking to start doing it again.. can u guys give me some great song which is not yet played by others so I can make the cover??