This, oh fuckin' this! As a musician and somebody who's an inspiring composer, I FUCKIN' HATE when companies and composers do that. They'll just fuckin' slap any piece of music to make it sound "good". Shit, I find "Idoun's Theme" lovely, but it doesn't do justice if say . . . Nintendo gave that theme to somebody with a care-free, easy backstory like say . . . they gave that to Luigi as his theme.
Speakin' of Idoun's Theme, FE6 also had a good soundtrack (wait, I already said this). FE7 soundtrack is also amazing. I thought I wasn't going to enjoy it.