Original: The album has a bluegrass or progressive bluegrass core; bluegrass mandolinist Ronnie McCoury became the album’s official “bluegrass guru” to ensure that there was “someone who could make sure we didn’t do anything clichéd or trite”.
Simplified: Bluegrass mandolin player Ronnie McCoury became the album’s official “bluegrass guru” to make sure that there was “someone who could make sure we didn’t do anything clichéd or trite”.