The first OP is from the band Goose house.
You gotta check them out, they made amazing covers of various songs, mostly of jpop/jrock and some anime OP's too.
2020-05-06 19:53:12 +0000 UTC
I haven't finished Your Lie in April but it's definitely a must watch, very pretty animation, amazing music. Just like with Fruits Basket it's very closer to life than fantasy but surprisingly it's not a shojo! It's a shonen! Very unlike a typical shonen but still as good.
Peach
2020-05-02 06:12:58 +0000 UTC
You're definitely right in that it's about musicians, but honestly, this is a series you want to enjoy blind so I wouldn't want to give that many hints about what it's about. (That being said, I love how you said that the first opening didn't give any spoilers if you're going in blind. That's completely true. It also tells the entire plot of the show if you dissect it enough lol)