Visualize. Athletes anticipate and mentally map out desired outcomes such as the phases necessary to go through in clearing the bar in pole vaulting or in pulling in a football for a catch. This works for musicians too. Get into the practice of “seeing” ahead in a song to anticipate musical passages and chord changes. Practice chord changes by accurately and smoothly moving back and forth with your left hand without even playing. Picture the chords in your mind. Silently practice. These activities build brain synapses and muscle memory.