The difficulty in perfecting this pattern comes from the need to maintain your flow rate while you utilize a smooth, oscillating ‘shaking’ technique.
To master the rosetta, learn the individual manoeuvres in separate, simple patterns. For example, try producing squiggles, wave hearts, or the incomplete wings of swans as you attempt to encode the fishtailing technique.
Pendulum (motion) The swinging motion in a circular arc from a fixed radial position
Lateral motion Sideways movement
Oscillate To swing back and forth across a central point
Wavelength The distance between one crest of a wave and the next
Frequency The measure of how many wave crests pass a fixed point — usually measured in waves/second