RemixIconEx.Media.music_2

You're seeing just the function music_2, go back to RemixIconEx.Media module for more information.
Link to this function

music_2(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Media.music_2()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M20 3v14a4 4 0 1 1-2-3.465V5H9v12a4 4 0 1 1-2-3.465V3h13zM5 19a2 2 0 1 0 0-4 2 2 0 0 0 0 4zm11 0a2 2 0 1 0 0-4 2 2 0 0 0 0 4z" />
</svg>

example usage

svg.icon {
  width: 96;
  height: 96;
}