The Korg nanoKEY Fold is a compact 25-key MIDI keyboard controller designed with an innovative folding mechanism for maximum portability. With dimensions of 14.7 cm in width, 7.3 cm in depth, and 1.7 cm in height when folded, this lightweight controller easily fits into bags and cases for musicians on the go. The silent membrane keys with adjustable velocity sensitivity across 13 levels provide a responsive playing experience without disturbing the surroundings. The scale mode offers 15 different musical scales with LED guidance to indicate the correct notes, while the built-in arpeggiator includes 15 rhythm patterns and customizable arpeggio types. Two touch-sensitive knobs allow for pitch bend and modulation, and the chord mode enables the assignment of complete chords to individual keys for enhanced musical expression. Connection options include USB-C and TRS-MIDI ports, with a TRS-to-MIDI-DIN adapter included for broad device compatibility. The controller features 15 user-customizable scene memory slots for individual configurations and is compatible with the Korg Kontrol Editor software for detailed parameter settings on Windows and Mac systems. Finished in Lava Orange, this MIDI controller combines professional functionality with exceptional portability for studio and live applications.