Alpha Theta Chordcat Groovebox

Chordcat from AlphaTheta is an 8 track groovebox that puts inspiring harmony and hands on performance tools at the centre of your workflow. Packed with intelligent chord generation, expressive effects and flexible sequencing, it helps you sketch ideas fast, break out of writer’s block and build complete tracks whether you are a beginner producer or an experienced musician.

At its heart is a powerful chord engine that can generate up to 110,000 musically compatible combinations, all mapped to a compact, performance friendly layout. With built in sounds, drum kits and performance effects, you can go from a blank pattern to a full, evolving groove in minutes. Chordcat is equally at home on a studio desk or in a backpack, making it a versatile companion for beatmakers, songwriters and live performers who want fresh harmonic ideas on tap.

Find Harmony Fast with Chord Cruiser Mode

Chord Cruiser mode is where Chordcat really comes alive. An exclusive algorithm digs into its chord database and suggests multiple harmonically compatible options, one after another, so you can audition ideas and build progressions in real time. Simply listen, pick your favourite and assign it to the keyboard, then the next suggestion is queued up automatically. This fluid workflow keeps you in a creative headspace, helping you discover progressions you might never have found on a traditional keyboard.

Expressive Effects and Performance Controls

Three built in effects are controlled from an intuitive XY pad, inviting you to shape your sound with a single touch. Use the arpeggiator to spin chords into melodic patterns, add delay for extra depth and space, or bring your mix to life with the ducker effect for dynamic movement. Because these tools are always under your fingertips, it is easy to perform transitions, builds and breakdowns on the fly, making Chordcat a powerful live performance hub as well as a studio sketchpad.

Creative Sequencing and Running Direction

Chordcat’s 4×4 step sequencer lets you build patterns quickly, then completely transform them with the Running Direction feature. At the press of a button you can flip playback right, down, clockwise or counterclockwise across the grid, instantly generating new rhythmic and harmonic variations. This encourages experimentation and helps you uncover unexpected grooves, whether you are working on house, hip hop, ambient or anything in between.

Sounds, Scales and Smart Note Mapping

With 145 sound presets and 16 drum kits on board, Chordcat covers a wide range of genres and moods. You can further sculpt each sound using the low pass filter and amp envelope, and even automate these parameters per pattern so your tones evolve alongside your chord progressions. Set a key and scale, and Chordcat automatically maps only the relevant notes to the keyboard, with LED feedback showing how suggested chords fit your chosen musical framework. This makes it easier for newcomers to stay in key, while giving experienced players a fast, reliable way to explore complex harmony without getting lost.

• Chord Cruiser Mode with up to 110,000 Combinations - An intelligent algorithm suggests multiple compatible chords from a vast database, letting you audition and assign favourites on the fly. This streamlines the process of building original progressions and helps you escape repetitive patterns.
• Hands On XY Pad Effects - Control arpeggiator, delay and ducker effects from a single XY pad for immediate, expressive sound shaping. You can turn static chords into flowing melodies, add spacious echoes or inject dynamic movement into your tracks without diving through menus.
• Running Direction Step Sequencing - Change the playback direction of 4×4 step patterns at the touch of a button, choosing right, down, clockwise or counterclockwise. This simple control unlocks fresh phrases and rhythms, encouraging experimentation across different styles.
• 145 Sound Presets, 16 Drum Kits and Smart Scale Mapping - Switch between a wide palette of presets and drum kits to spark new ideas, then refine them with filter and envelope controls that can be automated per pattern. Key and scale settings, combined with LED feedback, keep everything musically coherent while you explore.

General

• Product Type: 8 track groovebox

Dimensions and Weight

• Maximum Dimensions (W × D × H): 247 × 111 × 33 mm
• Weight: 0.4 kg

Power

• Power Supply: DC 5 V, 500 mA (USB bus power)
• Batteries: AA / LR6 alkaline battery × 6
• Battery Life: Approximately 5 hours (when using alkaline batteries, varies depending on usage conditions)

Sound and Performance

• Tracks: 8
• Sound Presets: 145
• Drum Kits: 16
• Effects: Arpeggiator, Delay, Ducker (controlled via XY pad)
• Sequencer: 4×4 step sequenced patterns with Running Direction feature (right, down, clockwise, counterclockwise)
• Key and Scale: Selectable key and scale with smart note mapping and LED indication
• Chord Modes: Chord Cruiser mode and Chord Play mode
• Filter: Low pass filter
• Amp Envelope: Adjustable with per pattern automation

Included Accessories

• USB Cable (C to C)
• Warranty (for some regions)
• Quick Start Guide
• Precautions for Use