If you have even a basic understanding of algorithms, you can easily create drum and bass jungle rhythms using nothing but the WebAudio API and cellular automata.

There's no need to buy expensive high-end sample libraries.

IT skill makes you a reasonable life.
@kotaro Which cellular automata are you using for this?
@IvanDSM You mean Seed?
It depends on the chord number I chose.

1D elementary cellular automaton (Rule 110 variant per instrument).