Thanks for the feedback! Re: the mineral colection sounds, yes I agree - interesting thing is, on a previous project but a similar scenario I've noticed very different sound outputs when trying on different computers: 1. my PC with USB headphones: fine, 2. a laptop with bluetooth speaker: some weirdness but generally ok, 3. another laptop's speakers: definitely not fine, 4. android version: sounding entirely different again :)
I wonder if some sound drivers 'auto-clip' the sound output to make them less ear-piercing.
Will be something I'll playtest more next time, and rather than play tons of sounds I'll just have a single collection sound that is started / stopped as appropriate..
And thank you for the kind words.