Another family hired a towing company to salvage the piano Thursday. It was hauled off the sandbar by a boat in Biscayne Bay.
The teenager had 24 hours to get rid of the piano or face a fine. But, the piano-playing Bentulan family beat him to it.
"I think it was so stupid of them to do it because who would actually burn a nice like piano like that, it cost a thousand dollars just to get one and they just blew it off," said Liam Bentulan, a family member who rescued the piano.
The teen claimed responsibility and said he and his friends set the piano on fire and then put it on the sandbar as an art installation.
It's unclear whether he'll fight to get the piano back, but maritime law says whoever pays to salvage an item is the rightful owner.