 According to official Varsity Vocals documents, the aspects of vocal performance that are integral to a high-scoring ICCA performance include balance and blend, quality and inventiveness of arrangement, rhythmic accuracy, interpretation of song, intonation, solo interpretation, tone quality, dynamic precision, and diction.The first six of these concepts are graded on a 1-10 scale, while the last three are graded on a 1-5 scale.These numbers are added up, then added to the number for the next section, Visual Performance.