Viva, The_Matrix is right. What kind of example?
song change with delay?
place in your code (msg#713502) this line:
while(media_playing(curr_song)!=0){wait(1);}
after line:
curr_song=media_play("song_game1.wma",null,100);
and you have to hear full first song. And Merry Xmas!

PS. Be not afraid to experiment with code. read manual, download all free stuff you can find (AUM, contributions, etc.) and try, try again.