I do not know the song, but I kept the beat

The afternoon storm hit Peacock Park in Coconut Grove at 4pm and I ran for the nearest pavilion. An old woman was already there with a small radio playing salsa at low volume. She started tapping her foot. I started too. The rain turned into a downpour and the two of us stood there tapping for twenty minutes like it was a rehearsal. When it stopped she turned the radio off and left. I do not know the song. I have the beat.