>>101005077I'm gonna get a lot of flak for this, but RWBY's music isn't all that good. Casey is not a good singer, she can't emote very well and can only sing in a single tone. When the music calls for her to sing in a higher or lower tone, she just gets louder or quieter. I think it's because she's the composer's daughter, she didn't have to struggle to find her styler; prior to getting a role as RWBY's singer.
Jeff as a composer is passable. He gets the job done, but his songs are forgettable. I don't know enough about music to have a solid theory for why this is. But, my thoughts are that he never moved beyond garage rock band. If Hans Zimmer and Yoko Kanno are chameleon composers, able to imitate any style, Jeff Williams is the exact opposite.
Some people hate RWBY's music, and while I think it's merely on the weaker side of mediocre, I get why they feel that way.