I was separated from my wife at the time. A lot of people think I wrote it about prison.
I gladly accepted the commission but was uncertain about what the end result would be. On the one hand, Cuban music was conquering the world; being heard everywhere, and our small island was already producing one of the popular musical genres of the 20th century.
If I could come back as anything - I'd be a bird, first, but definitely the command key is my second choice.