Have you ever tried to add interactive music on your website?
If you did, you might already know that web browsers don't support low-lewel MIDI. Not even with HTML5!
Jazz-Plugin enables low level MIDI functionality in web-browsers and allows playing individual notes via Javascript.
Jazz-Plugin supports all major browsers in Windows and Mac OS X.

You should consider using Jazz-Plugin on your website if you like to publish music lessons, chords and lyrics, online games, or anything else that requires generating on-the-flight music.

To install: double-click on the .msi file and follow the instructions.