Oh boy.. I usually listen to OST playlists but I'll just pick a few short ones from youtube
I love the entire Parasyte OST but this one is one of the most relaxing tunes that I could loop.
Most of K's songs were pretty catchy.
YUKI KAJIURA THAT'S ALL I HAVE TO SAY.
Kevin Penkin is a recent love of mine because of Made in Abyss.
I tend to just listen to hour+ long OST lists.
Did you ever want to watch a historical anime about samurai who use the power of ROCK MUSIC to rebel against the current government who controls the masses via idol boys? DO YOU WANT TO SEE MAGICAL BOY TRANSFORMATIONS VIA THE POWER OF MANLY MUSIC MAGIC??? IT'S IDOLS!! MUSIC!! TERRORISM!! CHARACTER DEATHS!!