2hp-arp

2hp Arp

Gate-driven two-HP arpeggiator with 13 chord types

2 HP Eurorack module

The 2hp Arp is a compact gate-driven arpeggiator that generates melodic sequences from a selection of 13 chord types across 8 playback modes. It accepts external CV for both root note and chord selection, making it highly patchable for generative and performance contexts. Its V/Oct output covers a full 0-5V range and can span one or two octaves depending on the selected mode.

Features

  • 13 available chord types including major, minor, dominant 7, diminished, augmented, and suspended variants
  • 8 arpeggio playback modes: ascending, descending, pendulum, and random, each in one or two octave variants
  • Gate/trigger-driven advancement with 0.4V threshold on Trig Input
  • Reset input restarts arpeggio at root note with 0.4V threshold
  • CV input for Root Knob (0V to +5V range)
  • CV input for Chord Knob (0V to +5V range) enabling real-time chord modulation
  • V/Oct output ranging 0V to +5V
  • Three LED indicators (M/m, 7TH, *) with solid and blinking states to indicate active chord
  • 2HP width for minimal rack footprint
  • No +5V power rail required

Controls & Jacks (12)

  • Chord— Selects the chord to be arpeggiated, indicated by the LEDs. Selectable chords include Major, Major 7, Dominant 7, Minor, Minor 7, Diminished
  • Mode— Selects the arpeggio playback mode: Ascending one or two octaves, Descending one or two octaves, Pendulum one or two octaves, or Random one
  • M/m— Indicates Major or Minor chord quality.
  • Root— Sets the initial pitch offset of the output, i.e. the chord's root note.
  • Trig Input— Advances the Arpeggio. Threshold: 0.4V
  • 7th— Indicates the presence of a 7th interval in the chord.
  • Root CV Input— CV input for the Root knob. Range: 0V to +5V
  • *— Indicates special chord types (Augmented, Full Diminished 7, Sus 4 variants).
  • RESET
  • Output— V/Oct output for the arpeggio. Range: 0V to +5V
  • Chord CV Input— CV input for the Chord knob. Range: 0V to +5V
  • Reset Input— Restarts the Arpeggio at the root note. Threshold: 0.4V

How-To Guides

  • First Arpeggio Patch
  • Generative Chord Morphing
  • Pendulum Pad Texture
  • Minor Descending Bassline
  • Sequenced Root Transposition
  • Random Jazz Improv
  • Suspended Tension and Release
  • Diminished Horror Texture
  • Augmented Dream Sequence

Explore the interactive Arp panel on BleepDex — tap any control to learn what it does.

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