Filmmakers and synthesisers have had one hell of a fruitful relationship over the years.
It's hard to imagine how low-budget horror and sci-fi would have survived if film composers didn't have the eerie, otherworldly and, crucially, relatively inexpensive sounds of synthesisers at their disposal.
On the other hand, pretty much every technological advancement in music technology can be traced back to an early pioneer working in the realms of film and TV sound creation, many of whom were often decades ahead of their counterparts in pop music. In celebration of this symbiotic relationship, we've rounded up nine of our favourite synth-led film soundtracks, starting with the GOAT...
1. Blade Runner
Vangelis' Blade Runner score might just be the pinnacle of synthesiser soundtracks. It seamlessly blends orchestral elements with vintage synth sounds (and the occasional sax solo) to create a mood that treads a line between old-fashioned noir suspense and bleak, dystopian futurism, perfectly mirroring the retro-futuristic feel of Ridley Scott's sci-fi classic.
The core of the soundtrack was primarily composed using a Yamaha CS-80 and Roland VP-330, interspersed with elements played on a Fender Rhodes to add an element of classic romanticism to the sound. Fittingly, there are almost as many different versions, edits and bootlegs of the soundtrack kicking about as there are re-cuts of the film itself.
Also deserving of honourable mention here is the soundtrack to the 2017 remake, Blade Runner 2049. Composed by Hans Zimmer and Benjamin Wallfisch, it pays homage to Vangelis' score by focusing on the use of synthesizers, including the CS-80, over orchestral textures.
2. Apocalypse Now
Composers: Carmine Coppola and Francis Ford Coppola
The soundtrack to Francis Ford Coppola's 1979 Vietnam epic is probably most commonly remembered for its iconic uses of Ride Of The Valkyries and The Doors' The End. But behind these moments of inspired synchronisation lies an impressive and imposing synth-driven soundtrack created, for the most part, by Coppola himself and his composer father Carmine.
Their compositions for the film are both otherworldly and threatening; a strange concoction of ethereal atmospheric noises and bursts of intrusive, Moog-like synth chords. It all helps to build a sense impending doom, detaching the narrative from reality as the film makes its increasingly hallucinatory journey up river.
3. The Fog
Composer: John Carpenter
Essentially we could include just about any John Carpenter film in this list. His self-composed, home-recorded synth soundtracks are as much a defining characteristic of his filmmaking style as any of the cinematic or narrative tricks he's known for.
Assault On Precinct 13, Escape From New York and Halloween all feature impeccable soundtracks composed in his distinctly lo-fi, drone-inspired style. The Fog is a personal favourite of ours however, featuring some of his most moody and atmospheric sonic creations. Plus, the commercial release opens with the same campfire ghost story as the film itself - and everyone loves a ghost story, right?
Composer: Cliff Martinez
Former Red Hot Chili Peppers drummer Cliff Martinez has, since stepping away from the rock music world in the late-'80s, emerged as one of Hollywood's finest modern composers. While he's a number of impressive soundtracks to his name - his score for Steven Soderbergh's version of Solaris is a definite career highlight - his work on Drive stands out as one of the finest cinematic synthesiser moments in recent years.
Martinez's score blends classic soundtrack instrumentation with unashamedly retro synth chords and arpeggiated basslines. It all perfectly matches the nostalgic-feeling soundtrack contributions provided by French producer College and Johnny Jewel's bands Chromatics and Desire, creating a weirdly retro, nocturnal feel to match Nicolas Winding Refn's stylized filmmaking.
Composer: Jon Hopkins
Scottish electronic musician Jon Hopkins has worked with Brian Eno and is a vocal fan of Cliff Martinez, and you can hear the influence of both coming through on his brilliant soundtrack to indie sci-fi movie Monsters.
The film's score is perhaps less overtly sythesiser-driven than others on this list - as is the case with Hopkins' albums, there's an earthy, natural quality rooted in acoustic percussion and piano parts. Yet at its core the whole thing is based around subtle synthesised drones and looping delay effects that reveal Hopkins' impeccable skill for creating gorgeous, humanised electronic music.
6. The Social Network
Composers: Trent Reznor and Atticus Ross
With their ambient-leaning, electronic soundtrack for David Fincher's account of the creation of Facebook, Nine Inch Nails mainman Reznor and English musician Ross do an excellent job of building a sense of impending doom through simple repeated motifs and menacing, droning synths.
The soundtrack also features a synthesised reworking of Edvard Grieg composition In The Hall Of The Mountain King, an idea that apparently came from Fincher directly, as a tribute of sorts to Wendy Carlos' work on A Clockwork Orange. Speaking of which...
7. A Clockwork Orange
Composer: Wendy Carlos
Wendy Carlos (actually credited as Walter Carlos here, being pre-sexual reassignment at the time) is a true synthesiser pioneer.
Her contributions to Kubrick's controversial masterpiece have their roots in her earlier work, Switched-On Bach, which saw Carlos piecing together renditions of pieces by Bach performed on a (then-barely known) Moog synthesiser. In a similar manner, her soundtrack to A Clockwork Orange is focused around weird and alien-sounding electronic reworkings of well-known classical pieces. It acts as a strangely logical bridge between main character Alex's disconcerting obsession with the work of 'Ludwig van' and the fantastical, futuristic look of Kubrick's film. The soundtrack also features one of the first ever recordings of a vocoder.
8. Day Of The Dead
Composer: John Harrison
Filmmaker and composer John Harrison's soundtrack to Romero's zombie classic is a real product of its time. It's packed with early synth-pop motifs, weird funk basslines, shuffling percussion and undertones of eighties power-balladry. It, perhaps, sounds a little naff to our ears now, but it's still hard not to love it.
9. American Gigolo
Composer: Giorgio Moroder
Wikipedia informs us that the Italian bloke off the Daft Punk album used to do music himself back in the '70s and '80s, including the odd film score.
As with many of the other composers on this list, Moroder has plenty of impressive soundtrack work to pick from. The Chase, from Midnight Express remains one of his most influential works, whilst his contributions to Scarface (and by proxy Grand Theft Auto: Vice City) are iconic sonic embodiments of overblown '80s excess.
American Gigolo is probably our favourite of Moroder's OSTs though. Aside from the fact that it spawned his excellent Blondie collaboration Call Me, the film's soundtrack is packed with a mixture of sleazy synth horn sections, weird bleepy atmospherics and funky disco basslines that provide the perfect soundtrack to the downfall of Richard Gere's creepy, narcissistic male escort.
10. Under The Skin
Composer: Mica Levi
Jonathan Glazer's extraordinarily unsettling adaptation of Michel Faber's novel Under The Skin sees an extraterrestrial Scarlett Johansson roaming the Scottish countryside in search of unsuspecting prey. It's fitting, then, that Glazer chose Mica Levi to compose the soundtrack, a musician and composer who - at the time - was something of an alien in the world of film music.
Bringing their oddball sensibilities and an experimental perspective to the project, Levi composed a sparse and disturbing collection of themes that merge synthesized abstraction with harrowing strings, blurring the boundaries between digital and organic sound.