let me answer your question since you are talking about my posti

After you copy and paste to the window's address, then you can see the song is played on your Window Media Player, on the left hand bottom of the Window Media Player, you can see the song's name and singer's picture, right click on the song's name, then you will see a pop-up window, click on "File" on the pop-up window, then click on "Save As", you get what you want for the mp3 file.