OXI Instruments Reinvents Sequencing: Stochastic Mode on the OXI One MKII

The OXI One MKII challenges the classic step-by-step sequencing approach with its Stochastic mode, pitching the process as more of a guided, evolving ecosystem than manual note entry. Rather than painstakingly placing each note, users set conditions and probabilities, letting the machine continuously generate patterns that morph and grow—almost as if the sequencer itself is improvising within boundaries you define.

What truly sets this apart is the seamless transition from generative exploration to structured composition. When the system spits out a phrase that resonates, it can be instantly captured and transformed into a standard, editable sequence. This workflow bridges spontaneous experimentation and traditional editing, offering a hybrid approach that feels both playful and practical.

At the heart of Stochastic mode is a reimagined grid interface where columns represent notes, not steps. The probability of each note’s appearance is set by tapping its column—full columns guarantee a note at every iteration, while lower levels yield rarer, more surprising events. The color-coding makes the scale boundaries clear, and the grid’s visual feedback reinforces the probabilistic logic underlying each generated phrase.

But the real generative magic comes from four rightmost columns dedicated to mutation: two control the degree of pitch and rhythm randomization, while the other two define octave and time division ranges. By adjusting these, users sculpt the bandwidth of mutation—subtle variations or wild transformations—while octave and time division ranges expand the melodic and rhythmic palette. The result is an engine capable of everything from hypnotic loops to continually evolving, unpredictable motifs.

The interface empowers users to draw velocity and gate curves directly onto the grid, injecting dynamic expression into otherwise randomized patterns. By pressing dedicated encoders, these curves become the backbone for evolving melodies, ensuring that even as notes and rhythms mutate, the overall dynamic shape remains intentional. Long gates can introduce glides, allowing for smooth transitions between pitches—a detail that adds another layer of nuance to generative sequences.

Despite the randomness, there’s always a phrase underpinning the chaos. The invisible buffer—defined by pattern start and end points—acts as a container for all generated notes. Users can expand or contract this buffer (e.g., from 16 to 32 steps), and the visual playhead provides orientation, even as the machine is continuously generating rather than merely reading fixed steps.

Stochastic mode isn’t just a playground for generative randomness—it’s designed to spark ideas that might never emerge from manual programming. By setting a scale, adjusting note probabilities, and adding touches of pitch and rhythm mutation, users can sit back and listen for happy accidents. When inspiration strikes, a quick freeze of the mutation columns locks in the phrase for immediate capture.

This captured sequence can be copied into any of OXI One’s traditional sequencer modes—mono, poly, or multi-track—for further editing. The workflow transforms the sequencer into an idea machine, bridging exploratory soundscapes with the structure needed for arrangement and performance. It’s a workflow that rewards curiosity and invites repeated experimentation.