i can't play fast arpeggio very well, especially in white key (for me, it's very hard to play fast arpeggio in C Major, F Major, and G Major)...is there any suggestion for practicing fast arpeggio?
Technique is not something that is achieved overnight. I suggest playing B major, D flat major, F sharp Major, and A flat Major arpeggios to begin with, and then start with the white keys. Time is an important element in piano. Time, Patience, and hard work can ensure success. As for practice, I know it can be very boring just playing the arpeggios over and over again. I suggest playing Prokofiev's etude in C major known as "The Harp" prelude. This of course is not an any piece, but isint exactly his 2nd piano concerto cadenza either. This prelude focuses on arpeggios mostly in the right hand and some in the left hand. It has beautiful harmonies and at the same time very beneficial. Here is the link to the scores http://imslp.info/files/imglnks/usimg/c ... piano_.pdf
It is the 7th piece titled Prelude
Hope I was able to help.