I would like to mention one small bug I found.
Let's say that I have to audio to play every 10 minutes.
The audio plays at 3.10pm.
I close my laptop lid at 3.12pm.
The laptop sleeps/suspends.
I open my laptop at 6.48pm.
As soon as the laptop wakes, the audio plays (this is the bug).
The audio also plays at 6.50pm (this is what it should do).
So it seems that when the computer is asleep, it 'builds up' one audio event, which plays as soon as the computer wakes up again.