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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
I've been working on it for 3 1/2 years. It's called Smoosic. It is a fully functional music composition program that runs in your browser. I think it offers a good workflow and allows you to create music quickly, especially lead charts and melodies. But it also handles scores, part extraction, audio, midi. It uses the Vexflow engraving engine, so it renders beautifully in many cases.
I've been working on it for 3 1/2 years. It's called Smoosic. It is a fully functional music composition program that runs in your browser. I think it offers a good workflow and allows you to create music quickly, especially lead charts and melodies. But it also handles scores, part extraction, audio, midi. It uses the Vexflow engraving engine, so it renders beautifully in many cases.