The London Symphony Orchestra performed the original score that featured various instruments such as keyboards, clarinets, strings, arpeggio and bombe.

"[7] James Southall of Movie Wave wrote "Throughout the whole score there is such clarity to the writing – I never cease to be amazed that a composer of Desplat’s phenomenal orchestral gifts has managed to forge such a successful career in these dumbed-down times.

"[9] MFiles wrote "There's a vivid sense that Desplat got to know Turing's character intimately, knowledge that allowed him to depict the man's triumphs and complexities with his characteristic musical intelligence.

There's a sense of sadness pervading the score that's achingly moving, yet even the most poignant moments shine through with genuine compassion, offset against which are the darker, more complex textures depicting Enigma and the spectre of World War II itself.

"[11] Filmtracks.com wrote "there is a clear narrative structure to Desplat's The Imitation Game, the secondary theme a challenge to appreciate out of context, perhaps, but the redeeming primary identity closing out the album on an optimistic note.

"[12] Erin Corrado of The Joy of Movies wrote "Alexandre Desplat’s music for The Imitation Game is a hauntingly beautiful piece of work that helps to elevate the film to one of the best of the year.

Perfectly encapsulating the story and Benedict Cumberbatch’s performance as Alan Turing, Desplat’s quiet score features simple melodies expanded throughout on a variety of string instruments heightened with smooth piano sections.

"[13] Pete Simons of Synchrotones called it as "a magnificent album, from a melodic, rhythmic, compositional and orchestrations point of view".