Thank you.
I actually had a wind chime loop playing for the pickups, but spawning the pickups with the sound froze the game every time for a second (the sound file was maybe too big) so i just deleted it. I didn't want to bother implementing some kind of object pooling for it. The level was also too small for the positional audio to make a big difference anyways, you could either hear all of the pickups at once or only hear them when they are almost on screen anyways. I think the best solution would actually be to increase the spawn rate of pickups or their lifetime or spawn a bunch at the start of the level.