Arturia KeyLab 25

Arturia KeyLab 25 is a MIDI controller and keyboard designed for use with music production software. It is designed to give musicians and producers a more intuitive and tactile way to control their software. It has 25 velocity-sensitive keys, 8 assignable knobs, 9 assignable faders, and 16 assignable pads. It also has a built-in arpeggiator and a sustain pedal input.

Arturia KeyLab 25 has been used by many professional musicians and producers, including Skrillex, Deadmau5, and Armin van Buuren. It works by connecting to a computer via USB and then sending MIDI signals to the connected software. The knobs, faders, and pads can be assigned to control various parameters in the software, allowing for more precise control over the sound. The arpeggiator can be used to create complex patterns and rhythms, while the sustain pedal input allows for more expressive playing.