LB-303

Program the line. Push the acid.

LB-303 is a hands-on browser bassline machine built around a 16-step acid sequencer. Program notes and rests, add accents, slides, and octave jumps, switch between saw and square waves, shape the filter and envelope, then route the result through overdrive, modulation, ping-pong delay, plate reverb, and bus compression. Eight pattern slots, track mode, local saves, and JSON import/export turn it into a real sketchpad rather than a one-shot toy.

Signal bay / LLZ-LB303-01

Browser instrument

LIVE INSTRUMENT

Signal architecture

What is inside

Sixteen-step patterns with notes, rests, accents, slides, and octave shifts
Saw and square bass voice with filter, envelope, decay, accent, and tempo controls
Eight-slot pattern bank, track mode, local saves, and JSON import / export
Overdrive, modulation, ping-pong delay, plate reverb, and bus compression

Input profile

Controls

Touch / pointer
Computer keyboard
Pattern bank