Play audio in the background of project

I apologive for the repeat question: See previous here.

The OP was not very good and the accepted answer does not help me... nor do the 28 irrelevant comments.

Problem: The song is not playing and no errors are given

Here is what I have thus far to play in the background of a script:

    load song.mat
    playerObj=audioplayer(y,Fs);
    start=playerObj.SampleRate*225; %start song at 3:45 mark
    play(playerObj,start)

This is all that I could find on Mathworks... seems like I'm missing something simple that would make the sound audible.

Thanks for the help\n Brooke