Flat, created by Tutteo Ltd, is an online music notation platform that empowers music enthusiasts to create, learn and share music scores, tabs, and lead sheets. We believe that the old fashion sheet music industry has come to a point where it needs to be renewed. Flat is the forefront of a new way to write, teach and consume written music. We proudly support 3M+ composers and music enthusiasts around the world.Online music notation softwareWhether you’re a beginner or a professional composer, our user-friendly music composition software gives you all the tools that you need to make your own sheet music. You can write, listen, share and discover music scores right in your web browser on any device.Collaborative music notationInvite your friends to compose your music scores online collaboratively. A single musical composition can be opened and edited in real time by multiple people using different devices at the same time (even if you want to write the new Top Charts with 1000 collaborators).Flat is more than just a sheet music maker, it’s a communityEvery single day, thousands of new composers and musicians join Flat. Share your music scores with them and discover the best creations made by our community.The best music scores shared by the communityOur popular section lists the most liked compositions. It’s a great place to get and give feedback… and meet other music enthusiasts!