Audacity 2.4.1 on Windows 7

If I play music such as mp3 on for example foobar2000 and then open Audacity and hit the red dot for record, the music does not record or show in the window, all I get is a straight line, if I speak however this seems to record, what am I doing wrong?

Use [u]WASAPI loopback[/u] to record what’s playing on your computer.

Of course, if you have an MP3 on your computer you can simply open the MP3 file in Audacity. You don’t have to record it.

Yes, I got it to record earlier thanks.