A "single back professional violin" is often a violin with a back manufactured from a single piece of highly figured, high-quality wood. In violin manufacturing, the back of the instrument is normally fashioned from a single piece of wood, while certain violins may have backs made of two or more pieces linked together. A single-piece back is frequently preferred for its visual appeal and potential impact on sound quality.
The term "professional violin" usually refers to a high-quality instrument designed for professional players or serious students. These violins are usually constructed by professional luthiers with carefully chosen materials and traditional building processes.
Here are some points to consider when purchasing a single-back professional violin.