It feels like I'm entering a desolated world...
The idea of the music itself being an artifact of the old civilisation onve living here is a cool one and it seems to work with this song. I like the choice of instruments, I think you made it work really well. At first I was afraid that it gets repetitive, and if it is melodically, the song actually progesses slowly but seemlessly, it's not boring, and it conveys the sense of discovery behind every detail as you go on exploring the ruins.
That repetitive melody is actually hooking when it comes back ! Well done mate :)