Try The Mose Tapiero discography for music or one of the Japanese manufacturers of traditional ocarinas who fill a gap not attended to in the west.What you appear to have is the reduced range version of traditional fingering (7 hole ocarinas are fingered from all holes closed: open as follows-RH3rdfinger,2nd,index, LH3rdfinger,2nd,index,thumb-LHthumb). - for which there are no tutors except a vintage one produced in USA by Gretch for the military issue plastic ocarina.

There is no music with tablature known to me for the full traditional style,though I intend to make such availiable on our pages soonish.