My answer to this is that you would not notice the keys that are not there. They usually are in a pitch range like a piano where you would never use them, anyway. Probably a good choice. I just bought a Yamaha P45 and love the action (pressure on the keys) Ir can be changed a little but it plays like a real piano. May be a bit rough if the Arthritis is really bad. I have Arthritis and I just manage to play thru the pain, which isn't that bad.I have a question on the 76-key keyboard. I've only ever played an upright piano so how (maybe a dumb question??) is it to have only 76 keys? I feel like the Yamaha keyboard may have a soft touch. Thanks in advance.