The majority of keyboards that have either MIDI or USB ports will work with Playground Sessions. You should be safe if your keyboard was manufactured within the last 15-20 years (late 1990s-present). Check your keyboard's user manual for information about compatibility with devices (computers and tablets) and operating systems (Windows, Mac OS, iOS and Android).
Keyboards manufactured over the last 20+ years (mid-1990s and older) might not be compatible with modern devices and operating systems. Please contact the manufacturer for more information about your keyboard's compatibility.