Acid house's minimalist production aesthetic combined house music's ubiquitous programmed four-on-the-floor 4/4 beat with the electronic squelch sound produced by the Roland TB-303 electronic synthesizer-sequencer by constantly modulating its frequency and resonance controls to create movement in otherwise simple bass patterns.
Classic Chicago house is sought out for its soulful and unapologetic rawness, a far cry from the swaths of antiseptic house available today on Beatport. As much of modern music tries to scrub out any imperfections, classic house openly embraces its limitations and blemishes.
Deep house is a subgenre of house music. It originated in the 1980s, initially fusing elements of Chicago house with 1980s jazz-funk and touches of soul music. Deep house tracks generally have a tempo of between 120 and 125 beats per minute (BPM). This style of house music can often have an acoustic feeling.