The MPC Key 37 is a powerful standalone workstation that combines sampling, sequencing, and synthesis. It features a three-octave keybed, aftertouch-enabled keys, 4 assignable Q-Link knobs, and a 7" touch screen. With various connectivity options including MIDI, CV/Gate jacks, and stereo 1/4" ins/outs, it can also function as a versatile MIDI controller. The MPC Key 37 offers a comprehensive music-making solution for both standalone use and integration with other devices.