What if HTML5 has the <note> tag?

Question

This thing will be awesome! Instead of put the <audio> tag and write the source of an existing file, just write: <note n="" v="" d="" t="">
n← is the number of note from C0 to B9
v← volume from 0 to 125
d← the duration of the note
t← when that note will be played.

Answer 1

This could be achievable in React.js since it could create custom components.

Answer 2

This is a impressive and innovative idea👌👌