The calculation is called simple because it follows directly from the definitions above. Simple means more like "follows directly from definition without fancy math tricks", not " everyone who can read could solve this in 10 minutes".
I think this is also mostly math related, not physics?
Actually I have the same issue for years. I used to buy from Amazon and Bandcamp, but Amazon is...Amazon and Bandcamp does not offer most of the music I am listening.
If you do not want to scrape from YouTube here are their three albums, each as zip file with MP3 320 kbit/s: nextcloud link
Is alloromantic the opposite of aromantic? I tried to understand this by reading online definitions but am not sure at all.