Acid by A Force Truly Evil

The Inspiration

The Roland TB-303 Bass Line defined a generation of electronic music. From Chicago’s acid house revolution to Detroit’s techno intensity, from the rave warehouses of the early ’90s to today’s underground acid techno resurgence, the 303’s squelch, scream, and slide have become the sonic DNA of dance music rebellion. ACID brings this legendary instrument’s soul into your Novation Circuit Tracks, transforming it into a dedicated modern acid groovebox.

This isn’t just another preset pack. ACID is a complete production environment that redefines what Circuit Tracks can be. With 96 authentic 303-style patches programmed to recreate the original machine’s behavior and response, plus 32 polyphonic classic house and rave sounds, 19 ready-to-play projects, and 64 essential drum samples, your Circuit Tracks becomes a purpose-built acid production machine.

The 303 Architecture

Every one of the 96 303-style patches has been meticulously programmed to behave like a true acid instrument. The velocity of each step directly affects the filter envelope amount, allowing you to recreate the famous 303 accent behavior simply by increasing velocity on selected steps in your sequence. Push harder on certain notes and watch them scream with that characteristic acid intensity. Pull back the velocity and they sit subtly in the groove.

Macro-controlled glide perfectly imitates the iconic 303 portamento, delivering the sliding transitions that define classic acid lines. Trigger the glide effect by increasing gate length in the sequencer and overlapping consecutive notes, just like you would on the original hardware. The result is those liquid, sliding basslines that make acid music instantly recognizable.

LFO modulation creates evolving movement within your patterns. Filter decay controls the envelope snap. Resonance pushes into self-oscillation territory. Wave morphing shifts between sawtooth and square wave characters. Every macro has been carefully assigned to give you the essential 303 controls in a performance-friendly layout.

Modern Power, Classic Soul

While the patches emulate TB-303 behavior, they fully exploit Circuit Tracks’ modern synthesis engine and distortion algorithms. The original hardware had no distortion stage. ACID gives you both vintage character and contemporary aggression through multiple drive engines, internal EQ shaping, and delay and reverb send effects.

The sound palette ranges from warm, bubbly classic acid perfect for Chicago house grooves, through Detroit-influenced acid techno with its mechanical precision, to the aggressive warehouse rave energy of hard acid techno. You get the timeless 303 tone when you want it, but with the power to push into territory the original hardware could never reach.

All patches respond to velocity where appropriate, allowing expressive control and dynamic performances directly from the Circuit Tracks pads. Your playing becomes part of the sound design. Soft touches create subtle filter movement. Hard hits unleash resonant screams. This is acid as a performance instrument, not just a pattern sequencer.

Beyond the Bassline

The 32 polyphonic patches complete the classic acid production arsenal. Inspired by house and rave culture, these sounds include house pianos that capture the warmth of early Chicago productions, organ stabs that punch through dense mixes, hoover-style leads that defined ’90s rave anthems, unison saw stacks for massive chord progressions, classic rave synths dripping with nostalgia, and chord stabs ready for hands-in-the-air moments.

These polyphonic sounds aren’t afterthoughts. They’re carefully crafted to complement the 303-style basslines, helping you build complete tracks rather than just sequences. Layer a house piano over an acid groove. Punctuate builds with organ stabs. Add hoover leads for peak-time energy. Everything works together to create authentic acid house and rave productions.

The Rhythmic Foundation

Sixty-four drum samples cover the percussive spectrum of acid music. House drums provide the steady four-on-the-floor foundation. Techno and hard techno drums deliver mechanical precision and warehouse power. Classic 707, 808, and 909 sounds bring authentic vintage character. Hats and percussion add rhythmic detail and groove variation. Acid vocals inject human energy into machine music.

These samples have been selected specifically to work with acid productions. They cut through dense bass frequencies without fighting for space. They maintain groove across extended arrangements. They sound authentic whether you’re crafting classic Chicago house or contemporary hard techno.

The Projects

Nineteen ready-to-play projects provide instant inspiration and practical education. These aren’t just demo tracks. They’re working examples of how to sequence acid basslines, structure arrangements, layer sounds, and create movement across extended compositions.

The projects explore classic acid house with its hypnotic repetition and subtle variation, Detroit acid techno with its mechanical precision and futuristic edge, hard acid techno with its relentless energy and peak-time intensity, and rave-influenced acid tracks that capture the euphoric chaos of early ’90s warehouse parties.

Study the sequencing patterns. Observe how accent behavior creates groove. Learn how filter modulation adds evolution. Then take these projects apart, reassemble them, and make them your own.

The Macro Philosophy

Every patch follows a clear, performance-focused macro layout. For 303-style patches: Wave Morph shifts between saw and square characteristics. Filter Modulation controls LFO depth and rate. Filter Decay shapes the envelope snap. Filter Envelope Depth provides bipolar modulation from negative to positive. Filter Cutoff and Resonance give you the classic 303 tone controls. Glide delivers authentic portamento. Distortion adds modern aggression.

Polyphonic patches adapt the layout where needed: Oscillator Character controls detune or shaping. Filter or Pitch Modulation adds movement. Amp Release adjusts decay time. The remaining macros mirror the 303-style layout for consistency across the pack.

This consistent control philosophy means you can switch between patches without relearning the interface. Your muscle memory works across the entire library. Performance becomes instinctive.

The Vibe

ACID transforms Circuit Tracks into something singular: a dedicated acid groovebox optimized for sequencing, performance, and real-time modulation of authentic 303-style basslines. From classic Chicago acid house grooves to Detroit-flavored acid techno and aggressive warehouse rave energy, ACID covers the full evolution of the acid sound.

This pack brings the classic 303 control philosophy into Circuit Tracks, expanded, modernized, and performance-ready. Whether you’re recreating vintage acid classics or pushing into contemporary hard techno territory, whether you’re producing in the studio or performing live in clubs and warehouses, ACID delivers a true modern 303 experience.

Inside you’ll find:

• 96 authentic 303-style patches with velocity-based accent behavior and glide response
• 32 polyphonic classic house, techno, and rave sounds (pianos, organs, hoovers, saw stacks, rave synths, chord stabs)
• 19 ready-to-play projects exploring classic acid house, Detroit acid techno, hard acid techno, and rave styles
• 64 drum samples: house, techno, hard techno, 707, 808, 909, hats, percussion, acid vocals
• Performance-focused macro layout consistent across all patches
• LFO modulation, filter decay, resonance, wave morphing, and modern distortion algorithms
• Delay and reverb send effects for spatial depth
• Complete acid production toolkit for Novation Circuit Tracks

TRIPLE PACK SAVINGS: Add any three or more A Force Truly Evil packs to your cart and save 20% automatically at checkout!

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