Check out the Player component too.
Look for events that fire when it has completed a sound,
and a block that tells you if a sound is currently playing.
Using those, you can set up a list as a queue of sound file names
waiting to be played. Add a sound to the list when touched, and
start the sound at slot 1 of the queue if nothing's playing.
When the Player ends, remove item 1 from the queue and
check if there's more to play. The next sound will be at the new slot 1,
if the queue isn't empty.
ABG