That's how I feel with most art - "yeah, it's cool, but can I look at something else now?". The time someone spent on creating it seems disproportionate to the time I'd interact with it. Maybe since lots of people will interact with it, it makes sense to do it, but maybe I just don't get art at all.

I see some sculptures that seem really basic, like putting some stones in some metal cage or something equally easy to design or, at least, explain/communicate. And all I'm thinking is "they paid some people to move a few tons of stone and weld some metal rods together... for this?!". My feeling is similar here - the idea is neat(ish) but someone went to all the trouble to actually implement it? The implementation gives us this random music we can play in our browsers but people mention they care more about the concept than the music. So why go to all the trouble to make the final polished version of your idea? Why not just say "imagine if we mapped the trains' locations via gps at specific times to different instruments"?

Yeah, I probably don't get art as others do. I just don't see a difference between "imagine a 100-ton stone handing from a rod" and "look at this actual 100-ton stone hanging from a rod".