1.on a dotted crotchet in irish music Grace notes and rolls and trebles are often used, plus a fifth double stop, and octave double stop
2. in english music double stop of a fifth are used plus octave double stop, depending on the area eg northumberland cuts are sometimes used, northubrian fiddling has a scottish influence whereas southern english tradtional fiddlers appear to have a less varied set of ornamention tools . or so it would seem from the limted amount of material that was collected