We chose Academics and Clairvoyance over Precognition and Postcognition would be a continuation of Academics, specifically Ling Qi's affinity for studying the past. Transcending that into doing it literally since she's more about experiencing things than learning about them from books. The thing with basing our perception of memories is that we can look at an object as we would a song or an art piece, as a story with personal meaning. We can look at a static object and see its past and listen to its echoes, giving us everything we would get by basing our perception on hearing but with added flavor. Flavor that actually makes sense as something Ling Qi wants rather than just something she can do.
I fully disagree. We are not at all getting the same things with the 2 art ideas.
The music perception idea is ultimately about changing our broad visual perception and claivoyance into auditory perception and clairvoyance by using music as a medium, and since Ling Qi's music is conceptional, we dont have to worry about other loud noises disrupting what she can hear.
your idea is to change the focus of the art to reading objects and postcognition, which while a nice idea in general is still very different
Btw im not even sure that the change you describe would actually still be within the scope of a simple art modification action. Afterall Xin differentiated between clairvoyance and postcognition and changing the track might need more investment to make it happen (like, successor creation for example)
the xin quote:
"There is divination, and there is divination Ling Qi. Clairvoyance and its related disciplines are both the simplest and most reliable. Object reading and postcognition are relatively simple as well, given a reasonable proximity to the present. Future sight or even prediction is not so easy, nor so simple."