No specific info about version 2.1. Please visit the main page of Piano One for Mac on Mac Informer.
Mini Grand is a simple to use yet powerful virtual piano instrument.
A piano built into the Touch Bar of your 2016 MacBook Pro.
Plays sounds as you type the keys in other applications.
A powerful application designed to assist users while tuning their pianos.
Pianoteq Stage is a physically modelled virtual piano instrument.