Edit out a part of an audio file How can I cut out a particular portion of the song and play the rest of the song?

for example my song is of 4 minutes and 11 seconds and I want to remove the section from 2:04 to 3:30 and play from 0:00 to2:03 and then continue from 3:31 and end at 4:11 

I hope you got my problem can anyone help me with this?
You can use an app like WavePad Audio Editing App. It is said to have the ability to work with multiple audio files. If you do not mind adverts, there is a free version for this software as well.