Early hardstyle was typically written at 140 beats per minute however, modern hardstyle is faster, produced around 150 BPM. It consisted of overdriven and hard-sounding kick drums, often accompanied by an offbeat bass, known as a "reverse bass". As the genre grew, the production techniques and songwriting changed to be suited to a more commercial audience. Modern hardstyle can be recognized by its use of synthesizer melodies and distorted sounds, coupled with hardstyle's signature combination of percussion and bass