Future bass is a music genre that arose near the year of 2006 in the United Kingdom, United States, Japan, and Australia. It is quite a broad genre of music, offering a wide variety of sounds and rhythms normally produced by a synthesizer. It is described as having a focus on a hard baseline with detuned synthesizers mostly including sawtooth waves and square waves. The sound waves are often modulated on the envelope of a low pass filter meaning the waves are normally cut off. In addition to that, it is common to find the utilization of a sort of "twinkly" sounding rise (Gradual rise in pitch), including arpeggio chords, and vocoders.
Future bass is often described as being "happy trap", since many tracks under this genre have a trap-style beat, but with higher-pitched synths and major chord progressions.
The future bass genre stems from trap, juke and UK garage, having noticeable similarities with each other. It also has origins in the post-dubstep movement in the United Kingdom. It is comparable to chiptune and glitch hop, off of which many, but not all, future bass artists base their music.