I’ve found the Goldilocks of portable MIDI controllers I have tested more portable MIDI controllers than I can keep track of, and I will tell you right now: 37
The ideal size for a portable MIDI controller is 37 keys, striking a balance between portability and functionality. While smaller controllers like Arturia's 25-key MiniLab MK3 are very portable, they may lack sufficient keys for some users. The 37-key option offers a more versatile experience for musicians on the go. AI