Original: Often drawing on sources from medieval history , as well as the traditional stories and music of her native Scotland , she is best known for her operas and theatre works , although she has also achieved considerable international renown for her extensive catalogue of orchestral and chamber works .
Simplified: She often uses medieval history as inspiration for her music , as well as music from her native Scotland , e.g. piobaireachd , which is a kind of variation form using small intervals .