Tell me more about this

Question

About how it can be used

Answer 1

https://www.sololearn.com/learn/HTML/2193/

Answer 2

https://www.google.com/url?sa=t&source=web&rct=j&url=https://developer.mozilla.org/en-US/docs/Web/HTML/Element/audio&ved=2ahUKEwiCoJP1rLLuAhV2ILcAHeOhBJoQFjAMegQIPhAC&usg=AOvVaw28gXLVrgNQerp5E8-HpacP.

You can upload the song online and then get it's url as a src attribute for audio.

Also search for similar questions if you want more info.