I'm looking to get a MIDI controller, one with either 25 or 49 keys. What I want to know is there any significant difference when it comes to how many keys a MIDI keyboard has performance wise? I've never played the piano in my life and I don't have a clue about notes and **** so I thought it would be a good idea to get something smaller till I learn by ear how the notes go and move on to something bigger. so just leave your commentary and let me know whats best.