Tadpole Treble now has Steam Workshop compatibility! You can now share and upload songs through Steam and enjoy all sorts of new stages from the online community! Go give it a shot!
https://store.steampowered.com/app/354400/Tadpole_Treble/
To celebrate Steam Workshop sharing, we're holding a contest. Go into Composition Mode from the Steam version of Tadpole Treble and upload this song, then do your best at getting all 50 bubbles in one go! If you can nab a screenshot (or video) of Baton having all 50 bubbles, we'll send you a free Baton plush, shipping included! But this will only last until the end of the day, and only for the first 10 winners, so get swimming!