Charlie ..a 76 key is designed for players...the low E on a standard bass guitar...is the low key on a 76..

Even if you ignore the first 3/4 octave ..you have more range for right hand chords and lines..


Now an 88 is a bit of waste for me...I don't think the lowest and highest would ever wear out..

Charlie, try piano mode..you might find you like the 76 keys..