Core. Presents: Sparta

When it comes to his long and fruitful career in music, Jim Ward is not guided by vanity or money or some grand narrative in which he’s the central player. It’s all about the song, the melody, the lyric. So in late-2017, when he began making heavier, more riff-laden music, he rang his Sparta bandmate of more than 20 years, bassist Matt Miller, and began work on Trust The River, the band’s first album since 2006’s Threes.

Of their absence Ward notes, “I’ve made a real point to...