s (at least) an accurate performance of a work. [Arts] 
n., The quality of being genuine or original. [Arts] 
n., The presence of the original is the prerequisite to the concept of authenticity. [Arts] 
n., The nature of the link between a composer and a work that bears his or her name. [A version of music is authentic]in terms of s
coring, number of movements [and is] the authentic musical text with respect to pitches, rhythm, and the like as the composer
 wrote it. [Arts] 
n., Authenticity and genuineness