Gregori Klosman's midi keyboard controller in the studio is the M-Audio Keystation 61es MIDI Controller. "This is really basic. There are no knobs or faders. I like the touch, though. For me - because I used to play piano - I need to feel that kind of piano vibe." Source article [here](http://www.musicradar.com/us/news/tech/in-pictures-gregori-klosmans-paris-studio-600687/5).more
This keyboard is amazing. I love its mackie transport controls. This controller is simple and fits on a desk between your computer keyboard and monitor very well as it is a compact unit. If your not someone who needs all the knobs and your more into controllers for just keys, this is what I recommend.
I basically picked this Midi Controller for its simplistic form factor. It gives me what I need without the un-needed extras. If your in the market for a grear Midi Keyboard without breaking the bank, this is your best bet.
I use the Keystation for most of my live keyboard needs, mostly because it runs so well with Logic Pro X. It's large enough so I can play most piano parts, yet small enough where it doesn't take up too much room on smaller stages.
I love this keyboard it feels semi weighted, working with a almost full sized keyboard like this makes working in the studio feel more authentic, instead of clicking in all the notes in a sequencer/piano roll, it feels more like im making music and not some highschool project. Imho