PROFESSIONAL SKILL
The fiddler is described as highly skilled and dedicated, able to create an orchestra from a desk, and is praised for knowing his business better than others could tell him.
FIDDLER
In came a fiddler with a music-book, and went up to the lofty desk, and made an orchestra of it, and tuned like fifty stomach-aches. ... The fiddler (an artful dog, mind! The sort of man who knew his business better than you or I could have told it him!) struck up 'Sir Roger de Coverley.' ... the fiddler plunged his hot face into a pot of porter, especially provided for that purpose. But, scorning rest upon his reappearance, he instantly began again, though there were no dancers yet, as if the other fiddler had been carried home, exhausted, on a shutter, and he were a bran-new man resolved to beat him out of sight, or perish.