Dash ( - )

Dash ( -  ). The dash is used in many of the same ways at  comma, semicolon, and colon :  it provides of somewhat sharper break than usually required, however. Therefore, the dash should be used only when strong emphasis seems to be required.

After he has spoken, he will explain - no, let us wait until another time.

Some of our important foodstuff - wheat, rice, and beans - are often in shorts supply.

Wheat, rice, beans - these are found is every sound diet.

Only two of you - Sultan and Tajiri perhaps - can come along with us.

There isn't specific connection between this song and the thirty-first appendix above; except the interest of the writer while she was typing.