Iceberg sings like a swarm

The speeded-up sound of an iceberg sounds like a swarm of bees or a orchestra tuning up say scientists.

“Once the iceberg stuck fast on the seabed it was like a rock in a river,” said scientist Vera Schlindwein. “The water pushes through its crevasses and tunnels at high pressure and the iceberg starts singing. The tune even goes up and down, just like a real song.”

I wonder what it says if you play it backwards.