A pair of experimental musicians who spend six years as lovers and end the affair with one partner singing the other’s songs about the break up of their relationship may seem like a plot for a Spike Jonze remake of A Star Is Born, but then Pavo Pavo are no ordinary band, and their second album Mystery Hour is certainly no ordinary record.

Lovelorn and triumphant, it walks a trippingly weird route around the messy slum of a failed relationship in which neither partner seems to have secured the upper hand, and yet neither is obviously reduced as a result. Perhaps mutual respect has helped to smooth the creative process. Whatever the intimate details, the results are extraordinary.

The former couple’s musical educations are impeccably storied; meeting as members of the same string quartet at Yale, they have since, separately, worked with some of the world’s foremost innovators. Eliza Bagg has lent her soprano vocals to compositions by, amongst others, Meredith Monk, Julianna Barwick, Ben Frost and John Zorn. Oliver Hill, who writes all but one of the tracks on Mystery Hour, has provided string arrangements for Dirty Projectors, Helado Negro and Wet, and tours with Kevin Morby and Vagabon. It’s a wonder they found time to fall in love at all.

The aching ‘Goldenrod’ suggests they did indeed get in deep. The album’s closer recalls the Flaming Lips’ melancholic brittleness – a descending cascade of bubbling keyboard overlaid across a tricksy time signature that is so riven by drama that it could be the centrepiece of the aforementioned movie. It even burns out before it can find proper resolution – the same old story. ‘The Other Half’ could be on the La La Land soundtrack, such are the reserves of longing it summons up.

That isn’t to say the album is entirely blue. Latest release ‘Check The Weather’ is very now indie funk a la All We Are, or any number of other recent acts, and seems to be the band’s attempt to secure some radio play for an album, which is otherwise so diverse as to potentially warn off first time listeners. Those who give it the attention it deserves will find layer after immaculate layer of melody and sentiment. ‘Mon Cheri’ provides the skeletal strut; ‘Around Part 1’ feels like a loving homage to ELO, at one point even seeming about ready to launch into 'Mr Blue Sky'.

Hopefully, the romantic disentanglement of Pavo Pavo won’t impact on their artistic future. Mystery Hour is a wistful, weird collection that shows once again that break up songs are the best.