1) Artistry 2) Bravura 1) Science 2) Skill 
• (n.) Virtuosos, collectively. • (n.) An art or study affected by virtuosos. • (n.) The quality or state of being a virtuoso; in a bad sense, the character of one in whom mere artistic feeling or aesthetic cultivation takes the place of religious character; sentimentalism.
Vir`tu·os'i·ty noun 1. The quality or state of being a virtuoso; in a bad sense, the character of one in whom mere artistic feeling or æsthetic cultivation takes the place of religious character; sentimentalism. « This famous passage . . . over which the virtuosity of modern time...
[n] - technical skill or fluency or style exhibited by a virtuoso
virtuosity 1. The character, ability, or skill of a virtuoso. 2. A fondness for or interest in virtu.
The artistry, or the degree of rhythm and harmony, displayed while a movement is executed. In general, the more flowing and seamless a series of skills appears to be, the greater the virtuosity and the higher the score.
noun technical skill or fluency or style exhibited by a virtuoso
prominent display of technical facility in performance.