Mellow grooves don’t come much mellower – or groovier – than this soulful slice of pub rock that gave Ace their one and only hit in late 1974.

Its most notable feature, aside from Paul Carrack’s blue-eyed soul vocals, is the fantastic bubbling bassline that gives it its groove. And I had completely forgotten about that filthy fuzz-guitar solo in the middle until I played it again just now.

I always thought it was about the singer (or songwriter)’s girlfriend cheating on him but it seems Carrack wrote it after discovering that the band’s bass player, Terry ‘Tex’ Comer, had been sneaking off behind their backs to play with a rival group, The Sutherland Brothers & Quiver.

Happily, Tex was forgiven and allowed back by the time this was recorded, and he can be seen – and heard – in this clip along with Carrack, drummer Fran Byrne, and the two guitarists who founded the band three years earlier, Phil Harris and Alan ‘Bam’ King, formerly of The Action.

How Long peaked at no.20 in the UK but reached the dizzy heights of no.3 in America, encouraging Ace to move there. After releasing their debut album Five-A-Side, and touring America with prog superstars Yes, they relocated to Los Angeles in search of further further success.

They didn’t find it. Instead they disintegrated, Harris leaving even before their second album, No Strings, followed in 1977. Comer, Carrack and Byrne then went to work with soulful Glaswegian rocker Frankie Miller.

Despite his obvious vocal talent, Carrack’s solo career never quite took off, although he’s been a ubiquitous figure ever since, working with Squeeze (replacing Jools Holland and singing lead on their hit single Tempted), Roxy Music (keyboards on Manifesto and Flesh + Blook) and Mike & The Mechanics (singing hits like The Living Years).

He’s also played as a session musician with artists from Elton John and Eric Clapton to BB King and Madness, The Pretenders and The Smiths – playing keyboards on their debut album.