Does MusicplayOnline or any of it's hosted resources use Adobe Flash?

Nope! Flash is not used on MusicplayOnline at all. All interactive activities are built using HTML5.

MusicplayOnline does not use any Adobe Flash. Because our interactive activities and games are all built using HTML5 the website should work on all devices, including iPhones, iPads, Chromebooks, tablets, android, and SMARTBoards!