Opening with a lone guitar line that itself has all the momentum of entire genres crammed into a single set of chords, We Were Promised Jetpacks’ ‘These Four Walls’ signifies a debut album that has the sort of peerlessness and potential to stand as a mainstay and luminary of indie music in the 21st century. This AA single – both tracks from ‘These Four Walls’ - demonstrates the songwriting passion and skill that has inspired such a rapturous response to this band’s first steps beyond their fertile Glaswegian music scene.

We Were Promised Jetpacks are their own band, by anyone’s reckoning, but are noticeably informed and inspired by the sorts of musical movements that one moves to and is moved by in equal measure. As vocalist Adam Thompson’s soon-to-be-classic Scottish lilt appears over the huge, full band instrumentation, the last four decades’ worth of underground musical innovation are all thrown into the sonic space with a flawless assimilation: the jolting, carefree vigour and the backing chorus vocals of 70’s post-punk (e.g. Gang of Four); the intricate and eloquent songcrafting and musicianship of 80’s UK pop (of Kate Bush, Talk Talk etc.); the skewed jarr and inimitable coolness of 90’s Western Pacific indie (of Steven Malkmus, The Shins etc.); the modernist, electrifying thrill of the last ten years of British indie. There is even the guitar-driven gravity and concurrently melodious and powerful impact of Explosions In The Sky or Mogwai and a Johnny Marr-esque sparkle to the lead guitar lines. Futureheads/Hot Club De Paris/Postcard/Fire Engines are similarly effective markers.

The band’s youthful energy (their average age is 21) explodes thunderously as colossal choruses fall unfailingly into place. Every space is filled, tension bristling achingly in Thompson’s vocal delivery as the rest of the band crashes around him with a perfect balance of force and harmony – the pure emotional impact of ‘It’s Thunder and It’s Lightning’’s repeated closing refrain - “your body was black and blue” - is vast, heartstopping.