I'm looking for the best value for a Midi Controller to use with Logic Pro X. I'm a guitarist and other stringed instrument player, and I want to add some piano and B3 parts to my original recordings. I know how to construct the basic one-handed major/minor chords and bang them out slowly on a keyboard. But I'd like to be able to take advantage of Logic's Midi Chord Trigger to play chords with one finger for recording. Which Midi Controller in the sub $300 neighborhood would be best value? I'm thinking 49 keys.