The piano in "Cafe Flor" is an upright in the middle of the cafe - the one near the library is the grand.
Recently added
2 new pianos this week
As of this submission time, there are currently two: a red one shaped like a speedboat, and a silver Seiler in an adjacent room. Obey the signs; do not play if you find the key lid closed. Security appears to be fairly lenient, provided you ask beforehand. Available from 10 to 5 each day, excepting special hours. Unknown how long these will remain.