When moving, a signal instructs the children to change their movement immediately, or on a pre-determined beat, or just as soon as possible.
The signal could be a pitch, harmony, or percussive noise, or visual or tactile.
Example: vocal signal
“Hopp” = change
“Heep” = change back
“Hupp” = go on to the next series.
Also, a basic beginner game for young children involves stopping and starting on a musical or signal. Example: triangle, bells, chime bars…