It's been said that Au Revoir Simone never actually intended to record an album together. The trio were on an indefinite hiatus and only after a period of individually writing new music did they actually meet up to share their creations. Four years have passed since Still Night, Still Light was released and, aside from a few collaborations, the band had been busy defining their own careers. But underneath all this was a connection, a friendship between these three women which meant that when they finally met up to share new music, ideas started flying, suggestions and sonic experiments were created, and all of a sudden Au Revoir Simone were recording a new album. On that basis Move In Spectrums comes to us as a happy accident.

For anyone worried that Au Revoir Simone's return might be a disappointment, opening track 'More Than' instantly dispels any concerns. A deep synthesiser note hums out of the void like a machine slowly coming back to life as the band sings "it's a long time coming / a long time gone away." It's a knowing tease from the band who seem to repeatedly break the fourth wall throughout the opening, later stating that "you're too good at being patient" before the chorus kicks in and we find ourselves listening to a renewed, refreshed band. Suddenly it's like they never really left us.

'More Than' has all the hallmarks of a classic Au Revoir Simone track. The verse vocals are hushed, almost whispered, over a soft keyboard riff, whilst the chorus soars with vocals soaked in reverb, echoing slightly and providing harmonies to compliment and fill the sonic space. The way in which the band layer sounds upon each other, be they vocal harmonies or instrumentation, shows just how technically accomplished they are, as well as how they seem to have an instinctive knack for creating great pop songs.

In the four years since Still Night, Still Light I'd argue that we've seen a rise in groups competing for Au Revoir Simone's place on the indie-pop throne. These bands have played with all the same pieces; wistful, dreamy female vocals and nostalgia for electronic music of the past. But Move In Spectrums makes the competition seem sterile. The band is known for collecting and writing music on vintage keyboards and as a result they are able to create sounds not so easily replicated on more modern technology. Their tendency to continually revise and refine sounds whilst experimenting and recording, means that the songs come to us filled with passion and imbued with an intensity and honesty that's hard to replicate.

Listen to the synthesiser lead on 'Boiling Point'. Hear how it swells and subsides like rolling waves, and then within those gradual waves there are quieter, small rises and falls in each long drawn out note. It's almost like the instruments themselves are struggling to create such beautiful soundscapes. This is a detail that's easy to miss, but take those filters away and the song would lose so much of its impact. Even the final moments of 'Boiling Point' - where a heavy, almost abrasive series of chords enter - would lose something of their climactic quality if it didn't feel like the whole song was about to fracture and break in an instant.

This mixture of the delicate and destructive, ties into the album's lyrics and themes as well. The repeated refrain on 'Love You Don't Know Me' uses beautiful harmonies from the three ladies, but the overall message is one of heart-breaking realisation. There is a melancholic mood that flows throughout the record. 'Boiling Point' whilst beautiful, is tinged with sadness, which predominantly comes through in the vocal delivery of the song's harmonies. After a long instrumental build-up 'We Both Know' features just two lines of lyrics, yet that's all that's needed to deliver the message of being a person overwhelmed.

Like the best pop music Move In Spectrums manages to directly instil a particular feeling within the listener, but Au Revoir Simone manage to do this without resorting to cliché. The vintage synthesisers they've been working with give a nostalgic, 80s vibe to the music; but this feels like an album that rather than looking back to the past, is trying to shake it off and emerge in the present, if not the future. There is sadness here, but there is also a hopeful, optimistic outlook that the best is ahead. All I can say is that it's great to have Au Revior Simone back and making such great music.