1. Introducció
The Arturia KeyStep 37 is a compact 37-key MIDI controller and sequencer designed to control both hardware and software instruments. It features a flexible keyboard, intuitive sequencing capabilities, instant chord generation, and real-time MIDI controls. This device is intended to facilitate musical creation and interaction.

Figura 1: Davant view of the Arturia KeyStep 37 MIDI Controller.
1.1 Què s'inclou
Your Arturia KeyStep 37 bundle includes the following items:
- Arturia KeyStep 37 37-key Controller & Sequencer
- Samson SR350 Headphones
- Liquid Audio Polishing Cloth
- Cable USB
- Power Adapter (if applicable, check local region for specific power supply)

Figura 2: Samson SR350 Headphones included in the bundle.
2. Configuració
2.1 Connexió d'alimentació
Connect the provided power adapter to the 12V DC input on the rear panel of the KeyStep 37. Alternatively, the unit can be powered via USB.
2.2 Connexió USB
Connect the KeyStep 37 to your computer (PC or Mac) using the supplied USB cable. This connection provides both power and MIDI communication for controlling software instruments and for firmware updates.
2.3 MIDI and CV Connectivity
The KeyStep 37 offers versatile connectivity for hardware synthesizers and modular gear:
- Entrada/sortida MIDI: Use standard 5-pin DIN MIDI cables to connect to external MIDI devices.
- CV Outputs: Connect to modular synthesizers using the Gate, Mod, and Pitch CV outputs.
- Pedal de sosteniment: A 1/4-inch jack is available for connecting a sustain pedal.

Figura 3: Rear panel connections of the Arturia KeyStep 37.
2.4 Instal·lació del programari
The KeyStep 37 includes a free copy of Ableton Live Lite. Register your KeyStep 37 to download and install this music-making software on your Mac or PC.
3. Instruccions de funcionament
The KeyStep 37 offers several features to enhance musical expression and control.

Figura 4: Top panel controls of the Arturia KeyStep 37.
3.1 Chord Mode
The enhanced Chord mode allows you to generate complex harmonic progressions from single notes. You can select from twelve different chord types. This mode also incorporates a strumming mechanic, enabling control over note spacing, timing between notes, and velocity sensitivity to create dynamic and organic compositions.
3.2 Scale Mode
The Scale mode quantizes played notes to the nearest note within a specified scale or key. This feature helps to minimize unintended accidentals and maintain musical coherence. You can choose from five predefined scales or define a custom scale.
3.3 Sequencing and Arpeggiator
The KeyStep 37 includes an intuitive sequencer for creating melodic patterns and an arpeggiator for generating rhythmic note sequences. These tools provide creative possibilities for developing musical ideas.
3.4 Real-time MIDI Controls
The controller features various knobs and buttons for real-time manipulation of MIDI parameters, allowing for expressive control over connected instruments and software.
4. Manteniment
To ensure the longevity and optimal performance of your KeyStep 37, follow these maintenance guidelines:
- Neteja: Use the provided Liquid Audio Polishing Cloth or a soft, dry cloth to clean the surface of the controller. Avoid abrasive cleaners or solvents.
- Emmagatzematge: Store the device in a dry environment, away from direct sunlight and extreme temperatures.
- Manipulació: Handle the KeyStep 37 with care to prevent damage to keys, knobs, and ports.
5. Solució De Problemes
If you encounter issues with your Arturia KeyStep 37, consider the following general troubleshooting steps:
- Sense energia: Ensure the power adapter is securely connected to both the device and a working power outlet, or that the USB cable is properly connected to a powered USB port.
- Sense sortida de so/MIDI: Verify all MIDI, USB, and CV connections are correct. Check your software or hardware instrument settings to ensure the KeyStep 37 is selected as the input device.
- El programari no reconeix el dispositiu: Reinstall drivers if necessary (check Arturia's official website). Ensure your operating system is up to date.
- Comportament inesperat: Try performing a factory reset (refer to the full Arturia KeyStep 37 manual for specific instructions on how to do this).
6. Especificacions
| Marca | Arturia (Bundled by Liquid Audio) |
| Nom del model | KeyStep 37 |
| Nombre de claus | 37 |
| Tecnologia de connectivitat | USB |
| Característica especial | Controlador de teclat |
| Dispositius compatibles | PC, Mac |
| Programari compatible | Ableton Live |
| Tipus de control | Controlador de teclat |
| Entrada de la interfície humana | Teclat |
| Instrument | Teclat |
| Mètode de control | Toca |
| Any model | 2021 |
| UPC | 857954008077 |
7. Informació de la garantia
The Arturia KeyStep 37 comes with a 1-year factory warranty. Please retain your proof of purchase for warranty claims. For detailed terms and conditions, refer to the official Arturia warranty policy or contact Arturia customer support.
8. Suport
For further assistance, technical support, or to download the full user manual and software updates, please visit the official Arturia website. You may also contact Liquid Audio Inc. for support related to the bundle components.