They sound absolutely fantastic:
Valsa
It's more boreal in distribution, so you might be a tad too far south. Usually it grows in bogs and heathlands. You can check iNaturalist for a map and to see if it's been reported near you:
Kalmia angustifolia
Those are mites, or more specifically Mesostigmatid mites. They are hitchhikers frequently found on insects associated with dung or carrion. These resources tend to be very patchy in the environment and mites are so tiny they can't disperse well by themselves, so they take advantage of beetles, flies, millipedes etc. to get there faster. These mites are predators that feed on worms or other small critters, they're not parasites.
Looks like your beetle has at least two mite species on it: the lighter ones with two separate dorsal shields likely belong to the genus Poecilochirus, and the darker ones with undivided dorsal shields are unfamiliar to me. They might belong in the family Macrochelidae.
A very interesting instrument. The pedal notes especially are very resonant which adds a lot of character to the performance.
Legend has it Bach's favorite instrument was the lautenwerck aka the lute-harpsichord. They are similar to the clavichord but have a rounded body, which gives the instrument a much softer tone. Bach supposedly owned 4. Here's a short recording: https://www.youtube.com/watch?v=8z31MbF89-8
Funny, I had the exact same thought process. It's a corvid! ...wait that's a funny bill. Figures it's something weird since it's from New Zealand.
Merriam Webster has this definition for liquidate: To do away with especially by killing.
Maybe it's just me but Stentors look very juicy and tasty. I wonder what they taste like if you ate a bunch of them at once.
Don't all the big publishers do this though, or is Elsevier especially bad?
Protists aren't a group I'm familiar with but could it be the genus Holosticha?
Complaining about the neighbours maybe? They sure have a lot of them.