How is a "fiddle front" characterized in a dog?

A "fiddle front" in a dog is characterized by the forelegs being out at the elbows and the feet being turned outwards. This term is specifically used to describe a conformation issue where the alignment of the dog's forelimbs is not optimal. When the forelegs are positioned too far apart at the elbows, it can lead to an awkward appearance and potentially affect the dog's movement and overall balance.

The outward turning of the feet can also signify improper angulation in the shoulder or forelimb structure. This condition may not only affect the dog's aesthetic quality but could also lead to issues in mobility and strain on the joints over time.

In contrast, the other choices describe different aspects of dog conformation that are not related to the fiddle front. For instance, pastern length, muscle mass, and head size are all separate evaluations that can contribute to overall breed standard but do not specifically define what a fiddle front is.