Adding Same Mp3 Together To Make Tune Longer

I wish to eliminate fade out of mp3 and cut drum start from beginning so it will not appear again when same tune is added to original. Perused the forum and manual and got some ideas but just cannot perform it succesfully. Please advise.

Select the part that you want to repeat
Then use “Effect menu > Repeat” (about the 22nd item in the list).
If you want to repeat the section once, enter “1” as the number of repeats and click “OK”.