We can’t see gamma rays, but thanks to this reinterpretation of data from the Fermi Large Area Telescope, we can hear them. Gamma-ray bursts are incredibly powerful explosions, perhaps the most powerful in the universe.
This one originated from a deep-space explosion in 2008. Photons were divided into different instruments and frequencies and then slowed down big time so they could be separated to individual notes.
It’s not exactly Beethoven, but it’s a very special way to represent invisible data.