There Will Be Fireworks' eponymous debut album sounded like being caught in the middle of a violent tornado of sound, each song building steadily to a thunderous, overwhelming crescendo with lead vocalist, Nicholas McManus, screaming his lungs out to be heard. Because Because is an altogether more melancholy affair; the still, clear morning surveying the damage done by the great storm. It demonstrates a contemplative, introspective side and a growing confidence to play with different styles and rhythms while, crucially, remaining definably 'them'.

First track, 'Harmonium Song', is sung gently to a keenly missed friend lost on a Winter's drunken night out. All the usual There Will Be Fireworks ingredients are here, but it is a lullaby of an elegy, not a scream, so the piano takes centre stage, driving the story sadly forward, rather than the wail of guitars. Here McManus' voice barely rises above a regretful whisper, never touching his usual breathless shout. Despite the lack of climax, it's quietly arresting and deeply affecting, the sense of loss hanging in the air till at least mid-way through the next track.

Said track, 'This Feels Like' has an Incubus quality (I'm thinking '11am', not 'Pardon Me'). It's still gentle, an indie seduction ("be patient while I work out how to work you"), but Ketterer's wood-block percussion and the lyric's enjambment give it a dash of 'funk' and sensuality that's brilliantly unusual and unexpected.

Next up, with the best vocal howls since Shakira, 'From '84' is an airy, acoustic number telling tales of lonely, lost people trying to connect anyway they can, be it sex, alcohol or howling at the moon. Somehow There Will Be Fireworks manage to create a sense of space and emptiness in their songs, particularly in evidence here. So, while the melody trips along prettily in the brightly lit foreground, the backing wail seems miles away in the night alone with that moon.

Listeners waiting for a trademark Fireworks explosion have to hold out till the final track, In Excelsis Deo, a Christmas song in the Frightened Rabbit 'It's Christmas so We'll Stop' vein. There's a sense of surviving the "black and blue" year and plunging forward with hope into the new one. Their post-rock sensibilities are judiciously applied, starting quiet, getting louder, getting quieter before erupting, unleashing the previously restrained strings and guitars into a rousing semi-hymnal finale that's shiver-down-the-spine glorious. t is, quite simply, stunning.

Because Because holds together well as a collection. Similar themes of cold weather and drunken attempts to communicate longing (essentially Glasgow) run through each song and hope increases with each track number. Without the final tune I'd be worried that they had lost the cacophonous climaxes that made me fall for them in their debut, but with it I'm happy to hear the greater range and subtleties in evidence. While as a standalone, nothing on this EP might grab new listeners the way Midfield Maestro certainly can, it is a gratefully received tantalizing gift en route to the new album. On the basis of this, I genuinely cannot wait to hear it.