Alex Michael is a musician known as Conspiracy Music Guru, who makes music about, err, conspiracies.

His music is great and his lyrics are funny.

He chatted to me about how the frequency most music is tuned to was changed a few decades ago, with help from the Rockefellers. Alex says that 432 Hz is more aligned with our natural comfort zone, but the standard became 440 Hz to keep us perpetually anxious.

Imagine listening to a singer who is always flat, but so slightly that you can't quite pin it.