I dreamed I tuned a piano made of clouds

It was floating above a city I didn’t recognize, the keys translucent and humming faintly. I used a feather to adjust the tension, and each note made the sky shift color—blue to violet to something like burnt honey. No one else seemed to notice it was there, but I could hear it breathing. When I woke, my hands still felt light, like they’d been holding something too fragile to let go.