The winamp program can set up to play the music continually as follows
1. Open the winamp program > select Options > Preferences...or Ctrl+P
2. It's show as the picture below > select Output > double click Nullsoft DirectSound Output
3. Click Buffering >move Buffer Length to the right > click Apply
4. Click Fading > Default fade length : 4000 as the picture below > click Apply
5. Click other as the picture below > move Cutoff to the right > click OK
After install completed, test working of winamp by switch the music.