My son Kyle loves to listen to Israel Kamakawiwo's old songs especially his version of “What a Wonderful World and “Somewhere Over the Rainbow”. Before he sleeps, we would attach surround speakers to his ipad and play these songs repeatedly until he dozes off. We created a play list of these songs and we just added the version of Louis Armstrong. Play list of songs keeps on repeating for more than three times every night before he sleeps.