Does anybody remember music@passport?
It was a special version of “MusicTime” that was released in 1996/7 bundled with Internet Explorer 3.0 for Windows95 and a Microphone.
Having written your piece in the score-writer section, you could then publish it on the music@passport web site, alongside everyone else’s pieces.
The microphone allowed you to ‘sing’ your notes into the computer rather than play them on a MIDI keyboard.