Most tunes are in binary or two-part form (AABB), are modal, and are 16 bars in duration. There are of course exceptions to these general rules. For example, The Gold Ring is a six-part piping jig, and Colonel Frazer is usually played as a five-part reel. But the vast majority of tunes fall into the binary format. Meabh O'Hare illustrates on the fiddle.