Emerging in an age when heavy rock was the happening thing, Unit 4 + 2’s self-titled 1969 album was unfairly deemed a dated anomaly.

The groundbreaking Left Banke boldly expanded on the classical rock concept, paving the way for bands like Procol Harum and the Moody Blues.

Featuring spirited harmonizing and red-hot grooves, Chairmen of the Board’s ‘Greatest Hits’ asserts the heartfelt sounds of a group primed for rediscovery.

Songwriting combines with dynamic musicianship to make Spirit’s ‘Twelve Dreams of Dr. Sardonicus’ a too-often-overlooked masterpiece.

Itching to do his own thing, Jimi Hendrix bassist Noel Redding formed Fat Mattress, which fused whimsical psychedelic pop with sunshine-spangled folk rock.

‘Two Yanks in England’ finds the Hollies working with the Everly Brothers, one of their key influences. Two future Led Zeppelin members, were there, too.

The Undertones produced outstanding songs, but they unfortunately never netted enough sales to acquire widespread notice, remaining a cult favorite.

Geared for shuffling the feet and shaking the body, ‘Vintage Rock’ portrays what a confident and concise band Bill Deal and the Rhondels were.

When the world around us grows quiet, there is no better company than an album like the deeply underrated David Wiffen’s ‘Coast to Coast Fever.’

Largely uncategorizable, Mr. Mister’s ‘Pull’ would finally be released five years ago after decades of neglect. It was worth the wait.