Introducing Arpeggio: the portable arpeggiator, sequencer, and synth.

Arpeggio is an instrument focused on letting you easily create, save, and perform melodies. It is inspired in part by the idea of an arpeggiator, a feature found on some synthesizers which instantly creates looping sequences of notes selected from the keyboard in real time. We expanded on this concept and created a completely new musical instrument designed to give you the freedom to create melodies with nuance and distinction.

Improvise, compose, create.

The notes you select from the one octave keyboard instantly create a looping sequence. Unlike a step sequencer, Arpeggio does not limit you to a set number of notes in your sequence. Add rests into your melody and adjust note lengths, tempo, octave, portamento, and swing. Save your melodic phrases as they are created into one of 512 memory banks. They can be chained together to create more complex melodies.


Arpeggio anywhere.

It’s equally at home on stage, in the studio, or on the couch. With an editable 2-oscillator virtual analog synthesizer, a built-in speaker, and battery power, Arpeggio can help you can make melodies wherever inspiration strikes.

Plays well with others.

Arpeggio is an amazing instrument all on its own, but its expansive I/O makes it a powerful companion for your other electronic instruments. Add an arpeggiator to any synth. Connect a larger external MIDI keyboard and record a full chord’s worth of notes into arpeggio instantly. Expand your sonic palette by using it as a sequencer to control other synthesizers and sound modules. Sync it up to external clock sources for integration with drum machines, samplers, iOS devices and computers. 

  • Create and save sequences seamlessly during play.
  • Classic up, up-down, down, down-up, & random arpeggiator modes.
  • Chain together up to 512 user created arpeggio patterns.
  • Internal 2-oscillator virtual analog monophonic synth.
  • Adjust note lengths and add rests into your sequence.
  • USB, Bluetooth, MIDI in/out, CV/gate out.
  • Gate in/out for syncing to analog gear.
  • Control external hardware and software synths.
  • High quality internal speaker.
  • AC & battery powered. Make melodies anywhere!


A one octave keyboard from low C to a high B is where you’ll play the notes to create your own melodic sequences. Turn the octave knob to shift the pitch of the keyboard up and down to play any note you want. Notes may also be input using an external MIDI controller.


Sequences are created and saved on the fly. You can create a sequence and then save it to a bank while it’s playing. Sequences are monophonic and can be up to 128 notes long. Individual steps in a sequence can be of different note lengths, (not just gate length). Like an arpeggiator the sequence length expands as notes are added. You can link melodic sequences together, add rest notes, and delete notes in real time. Attach the advanced sequencing overlay and scrub through your sequence to delete or insert notes, add slides, and adjust swing to create the exact melody in your head.


Instant looping sequences. Up, up-down, down, down-up, sequence (as played), random styles. Hold (Latch) can be turned on or off. The play button starts and stops Arpeggio.


You get 512 banks to save and instantly access user created sequences. Sequences can be chained together for seamless experimentation and composition. These 512 sequence banks are organized into 3 tiered levels (sets, songs, sequences) each with 8 banks. From the top down there are 8 sets, each set contains 8 songs, each song contains 8 sequences. Sets, Songs, Sequences can also be copied, pasted, and deleted.


In transpose mode the currently playing sequence can be shifted up and down by either selecting a note from the built in one octave keyboard, a whole octave by turning the octave knob or by playing a note on an external MIDI controller. The lowest note in the sequence gets shifted to the selected note and the rest of the sequence shifts accordingly.


Arpeggio contains a monophonic two oscillator virtual analog synthesizer. Turn the voice knob to cycle through different sounds and adjust shape, attack and portamento. Dive deeper using the synthesizer overlay and completely customize all synth parameters, create and save your own sounds.