Jungle Techno
4 - Major
Drum and Bass
Breakbeat Hardcore, Darkside Hardcore
Ambient Jungle, Ragga Jungle
Breakcore, Darkstep, Drill and Bass, Drumfunk, Dubwise, Hardstep, Jazzstep, Jump-Up, Jungletek, Speed Garage, Techstep
The early 90s was a chaotic time for EDM as the burgeoning rave community churned out an unfathomable amount of new styles, splintering into a million different directions and setting up threads of musical tradition that continue to inform the genre to this day, and of all the new spheres of musical thought that developed in this time, perhaps none is more tangled and impenetrable than drum and bass. Drum and bass has always been a difficult genre to understand the tree of, with a collection of genres that appear to be only minutely different from one another while simultaneously encompassing a shockingly vast array of music, but even those of us who understand what the fuck the difference is between techstep and neurofunk still stumble trying to decipher the original timeline of how drum and bass originally developed.
The common wisdom is that first there was breakbeat hardcore, and then there was darkcore, which morphed into jungle, and then that turned into drum and bass. It's true that breakbeat hardcore is the common ancestor, but it's hard to say the rest of the line proceeds as stated because these genres developed almost simultaneously. Here's a more accurate timeline: breakbeat hardcore comes about around 1990, splintering out of the britcore hip hop scene, but doesn't solidify stylistically until around 91. Then, in 92, darkside and jungle develop in parallel as producers start moving towards a darker, more aggressive sound while the mainstream side of breakbeat hardcore becomes increasingly silly and childish. Then, in 93, atmospheric drum and bass (specifically, an early form called ambient jungle) begins to pick up steam - the only caveat being that LTJ Bukem has actually been making it since 1991 and it's impossible to really separate the jungle influences from the breakbeat hardcore ones.