Online collaborative music notation software - Flat

• https://blog.flat.io
• https://flat.io/score/5c993e4f1b18ab1524e091f3-piano-battle-2-rory-cannon-vs-bc-mix-music-vs-yoni
• https://itunes.apple.com/us/app/flat-music-notation/id1177592149?mt=8
• https://twitter.com/flat_io
• https://facebook.com/flat.io
• https://www.youtube.com/user/flatproject
• https://instagram.com/flat.io
• https://github.com/FlatIO