Personal remarks:
Whilst on holiday in Leeds in the late 1990's, I came across this remarkably well produced and well illustrated ocarina tutor in a local music shop and could not resist purchasing it along with the handsome glossy blue ocarina shown on the book's front cover. This 6-holed ocarina is not at all like my ancient Austrian 10-holed version, occupant of my ditty box for more than 40 years, but more similar to those made in South America. They all sound alike however. This is an excellent tutor aimed at the young and even very young which I warmly recommend both as an ocarina tutor and as an introduction to music.