20th of April, 2011… The night before I was traveling to Berlin, there was a strong storm in Madrid… It was so beautiful that I set some mics up, sit down at the piano, and played non-stop for 45 minutes, got up. Then I closed the lid of the piano, stopped the recording, and prepared my luggage. When I came back from Berlin, I listened to the recording, and I loved it, so I decided to publish it. The result is 20 de Abril.