Saw waves, 7th and 9th chords and drums squashed to death. That and an L2 limiter (thanks for the reference, Poldoore). Future bass is a genre in the electronic dance music realm and the term has been thrown around since the 2010s. Take the bass charge and drops of dubstep and blend them with the ecstatic and positive feel people who don't like pop music still get while listening to pop music. Add to this a tiny bit of trap's harshness and you've got future bass. The BPM one could expect from a future bass genre is anywhere between 130 to 160 BPM with typical song part length of 4 bars. Prominent future bass artists include RL Grime, Hudson Mohawke, Flume, Lido and Cashmere Cat.