I love Ghibli movies and their music.  Here are sheet music and tabs of Always With Me (Itsumo Nandodemo) from Spirited Away arranged for 12-hole ocarinas. Link to the interactive sheet music will be available soon.

Ocarina tabs

I find ocarina tabs on their own very hard to read, as they only communicate the pitch and not their lengths.  So I placed the tabs on top of musical notation.

Ocarina karaoke

It's a lot more fun when you can play as the ocarina soloist when backing music, so here's an ocarina karaoke version; the ocarina part is muted while the piano chords play!