Introduction – Audio Damage Sequencer 1 User Manual
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1. Introduction
Sequencer 1 is a pattern-oriented control-voltage step sequencer with the Eurorack form factor.
Inspired by the control-voltage sequencers from the dawn of modular synthesizers and the
pattern sequencers of more recent drum machines and tabletop groove boxes, Sequencer 1
provides a flexible and powerful control center for generating melodic and rhythmic patterns with
your Eurorack system. Here are its main features and attributes:
Live editing of all pattern and step data—change everything without stopping.
Four banks of 16 patterns each, for a total of 64 patterns.
Each pattern can have one to 64 steps.
Multiple stepping modes providing various forms of forward, reverse, bidirectional, and
random behavior.
One pitch control-voltage output with a range of zero to +5V, with either 1V/Oct or
Hz/Volt scaling.
Over 40 musical scales and modes and eight user-programmable scales.
Diatonic transposition for in-key improvisation.
Three control voltage outputs, programmable per step, with a range of ±5V.
Gate and accent outputs with inverse and S-trig modes, output length programmable per
step.
Multiple gate cycles per step to reproduce the “ratcheting” effect of a custom sequencer
built for and used by a famous pioneering German ensemble.
Live “repeat” functions for improvisational edits and remixes of patterns.
Three tempo-synced low-frequency oscillators (LFOs) with 25 waveforms, three output
ranges, adjustable phase, and periods of one to 256 steps.
Two control-voltage inputs for modulating current step, step mode, gate length, current
pattern, transpose, repeat mode, and ratcheting.
Transport output jacks, for use as a master tempo source.
Transport input jacks, for slaving to other tempo sources.
Micro SD card for pattern storage and firmware updates.
Sequencer 1 is suited to both methodical composition and live improvisation. We’ve designed it
so that the most often-used functions are only a button press or two away. At the same time, the