This event is in the "Teens" group. This event is in the "Adults" group. Open Piano Lab All Day Teens, Adults Mason Square Branch This event is in the "Teens" group. This event is in the "Adults" group. Jan 6 2025 Mon Open Piano Lab All Day Mason Square Branch Library Location: Mason Square Branch Age Group: Teens, Adults Program Type: Technology Event Details: Practice your piano skills on one of our new electric keyboards. Headphones are required and available. All ages welcome.