Mozart Piano Sonatas- When do I use Finger Pedalling? When do I use Finger Pedalling for Mozart Piano Sonatas? Is there a specific rule that I must use Finger pedalling in my Interpretations for the first movement or when I see an Alberti Bass Accompaniment? To use finger pedalling to create a gentle, soothing raindrop heavenly effect. And when can I use the Damper Pedalling as well? Any hard and fast rule?