write music notations on web page [closed]

Answer 1

There is some ASP.NET MVC API for music engraving: http://manufaktura-controls.com/ It renders notes to SVG or CANVAS format.

EDIT: I recently released my music notation library as open source: http://musicengravingcontrols.com/ It has two web implementations: for ASP.NET MVC and ASP.NET Core and one experimental implementation for Blazor 0.4. The first two are server-side, the third is client-side (via WebAssembly).