Undoubtedly I had lost time in balking at scales, arpeggios. [...] There is an advantage in establishing the top story of one's constructions first: One has seen the heights; one knows what one is building for and what must be sustained. Yehudi Menuhin
You can sightread better if you know your scales and arpeggios. James Galway
Both cadenzas lead to an identical section with arpeggios in the piano and a solo flute accompanying, before the cadenza ends quietly. Source: Internet
Early piano music was light in texture, often with Alberti bass accompaniment, which used arpeggios in the left hand to state the harmonies. Source: Internet
Jazz guitar improvising is not merely the recitation of jazz scales and rapid arpeggios. Source: Internet
On a harp, the player can slide their finger across the strings, quickly playing the scale (or on pedal harp even arpeggios such as C -D-E -F-G -A -B). Source: Internet