Simplify the following text for a Grade 7 native English-speaking person.
Original: Seven sharps or flats make major keys ( C major and C major ) that may be more conveniently spelled with five flats or sharps ( as D major or B major ) .
Simplified: Seven sharps or flats make major keys ( C major and C major ) that are more easy to spell with five flats or sharps ( as D major or B major ) .