Deep house is a subgenre of house music that originated in the 1980s, initially fusing elements of Chicago house with 1980s jazz-funk and touches of soul music. The lengths of the tracks are usually around 7 and 10 minutes, with tempos usually in the range of 120 to 130 BPM. This style of house music can often have an acoustic feeling.
Deep house is known for complex melody, use of unrelated chromatic chords underlying most sequences, and a soul, ambient, or lounge vibe to the vocals.