House music grew out of disco's mid-‘80s electronic turn, and deep house was not far behind. As machine grooves stripped down, producers like New York's Pal Joey and Chicago's Frankie Knuckles filled the empty space with jazzy chords, enveloping atmospheres and tantalising vocals designed to carry dancers into the wee hours. The format took root in London, Berlin and beyond. Today, in the hands of revivalists like Storm Queen and Disclosure, the same moody template might be rendered classic or futuristic. That versatility has made deep house one of club music's most enduring sounds, evolving with technology and finding new ways to catch feelings all the while.