In a script you could put the "play" commands for each sound one after the other with "sleep[play]" in between but this does have the downside of tying up the deck i.e. not super useful for background music. But I'm looking at the sound.deck in the examples and I think you may be able to get something working like this using the "on loop" event - it looks like you can pass in the next sound to play in the loop so that could be used to string together a series of sounds. I think.
Yeah, I managed to play a full song with the sleep[play] tricks , but indeed I can't interact with anything during the song...
With the loop settings, it only plays randomly, I can't figure out how to play the part one after the other. When I touch the code and remove "loop" it plays all sounds at the same time ^.^
I'll keep on trying stuff and keep you updated.