Transverse ocarinas are the traditional design of many ocarinas. They have the largest Range of any ocarina type. 10 Hole Transverse Ocarinas have a range of 18 notes for example. A good 13-Hole transverse ocarina has the range of 21 notes. Transverse fingering is harder to learn than other types of ocarinas so it is recommended that you have some ocarinas experience before buying a transverse ocarina but it is worth it to have an ocarina with such a high range of notes.