How could I loop music with the introduction?

[Keybearer]

I need a tutorial on how I could loop a music with the introduction at the beginning and then loop without the start. I'm using the Audacity, if you could provide tutorials on how to do it using Audacity, it would appreciated. You could also suggest other better software.

 

[Mel]

cut the intro and rest into separate pieces and paste the other part over and over.

 

[kia_aimer]

I don't know Audacity, you can google it.
Good luck