What would be the best way to play a sound before a track loops?

So I have a background track that loops continually. The track doesn't loop very smoothly so I would like to play a sound around one or two seconds before the track ends to smooth the loop out. What would be the best way to do this?

Thanks!

Isn't the best fix to make the track loop correctly ?

Well yes, but I thought that this would give me control over when sounds are played at certain parts of a track. I'm guessing I could use a variable and track the playing track and use it's value to play a sound but in the long run it probably would be easier just to fix the loop...

Thanks for the reply Loinz!

Ya I think just fix the music so it loops. I don't think you need control over parts of a track. If you really wanted to do it you could get the time of when it should play the sound and start a timer of that length when the music starts.