I often practce without anything written in front of me. My instructor has told me that as I warm up, I should concentrate on making the best sound of each and every note I play. This philosophy carries over into my performances. I will always close my eyes, open my ears and heart, letting the message of the song speak to me. I noticed this weekend as I performed my sound was clean, crisp and bright, notes were centered and resonant. The first song I played called for an Eb3 from a slurred C3 and I nailed it! The second song I played required several slurred octaves and I nailed each of those! All my music is memorized so I commit fully to the sound and the message, it makes a HUGE difference!