iTunes will happily stream Apple Music to an AirPlay device, and AirPlay is unencrypted ALAC.
Alternatively simply play through a digital audio output and capture it that way.
Alternatively simply play through a digital audio output and capture it that way.
You have no way of knowing what the data's original quality is at, and its introducing artifacts from analog output back into a digital form, which is then outputted to analog again. Its an option, sure, but its like saying "get all your music on youtube."
But as pointed out Audio Hijack does the same thing virtually with a kernel extension.
>and AirPlay is unencrypted ALAC.