"Every cultured music student knows..."

...you must learn your scales and your arpeggios!" 

Do mi do mi do so mi do Every truly cultured music student knows You must learn your scales and your arpeggios Bring the music ringing from your chest And not your nose While you sing your scales and your arpeggios If your faithful to your daily practicing You will

Why? Because passages like this are EVERYWHERE in piano literature. An excerpt from Saint-Saens's Second Piano Concerto, which I'll play with the Alliance Symphony on Oct. 22, in Brush Hall at Mount Union: (sneak peak at first movement in Faculty Recital on Sept. 10 at Mount Union, 7:30 pm)

Or this...

Or this...