THE CLASSICAL IN ART

What constitutes a classic in any art?  Is it something to do with genre?  Like, say, in 'classical' music or a Kathakali performance? Does it mean that the entire production in that genre has to be taken as classic?  If so would it not just exhaust the value that we ascribe to what constitute a classic? If a classic can be seen as performatively embodying the time spirit (something akin to the German 'weltanshaung' maybe,) but at the same time something that also transgresses the 'period style' to achieve something unprecedented, something that necessarily goes beyond the ascribed hierarchy of genres to invert, or even redraw the form in the spirit of the times, then can we call much of our classical music or classical performance 'classical' in that sense? Will we have to see that a classic transcends the prescriptive and academic notions about form and render possible new forms, styles and genres, innovatively redrawing the contours of the work as regards form, content , rendition, markers, schema such as what have appeared to be its very basics like 'scale' or its perceived geometry, rhythmic structures, mudras etc.? If so, could a popular form also become a classic? And could somethings done in what we consider as classical forms just be trash, mimicry or repetition? (This is not to say that a mimicry could not be a classic.) ..How and what should be taken for a classic of our times? If even repetition is not a process of re-enacting sameness, then what exactly could bbe its role in this process? How exactly can we talk about something done today as a classic, if we were not to follow the positions ascribed to reified form? Should there be classics in our time?  If we were to consider music as a construction in sound, which could also mean that it could include noise, silence or anti-music, would it not give more possibility for us to play with sound in more radical manners without totally succumbing to knowledgeableness redundant form and tutoring? Could this also not mean that anybody can, if need be , innovate on their own in sound, whether the pundits may take it for music or not?