huh what did i do wrong? im a newbie after some advice can you help...?

i am trying to make an app that will play an mp3 after a set time no problem there i click a command button it waits 30 seconds then plays the mp3....but i want it to wait another 30 seconds and repeat it? this will go on as long as it has too until i decide i have had enough and turn it off with another button....can anyone help with the code for this please

oh this is in vb6 by the way