Assertion: guitar | /r/HasAspect | convex back
Facets:
Source sentences:
text: Many 000-style guitars also have a convex back to increase the physical volume of the soundbox without making it deeper at the edges, which would affect comfort and playability.
text: Many 000-style guitars also have a convex back to increase the physical volume of the soundbox without making it deeper at the edges, which would affect comfort and playability.