The cello has the more rich and resonant voice which I resume is what you are looking for in the show. It is definitely the better voice of the two types of sound. The guitars both have a thin quality that is annoying to listen to after a few seconds. It is jarring in contrast with Krista's voice. As to backdrop music, I echo the comment made earlier that it seems to lack coherence which would not be consistent with what I think you are looking for with the show. While I am sad about the name change of the show, I am grudgingly willing to trust the creator's vision for it.
More information about text formats