In music, a scale is any set of musical notes ordered by fundamental frequency or pitch.
An arpeggio (it. /arˈpeddʒo/) is a musical technique where notes in a chord are played or sung in sequence, one after the other, rather than being played together like a chord. This word comes from the Italian word “arpeggiare”, which means “to play on a harp”. An alternative translation of this term is “broken chord”.
In the O’Connor Music Studio, we have started using some newer books with beginning students: Piano Adventures Scale and Chord Book, Book 1 (5 finger) and 2 (Full scales).