0 the smallest difference in sound between two notes that are next to each other in the Western musical scale
1 the smallest difference in sound between two notes that are next to each other in a musical scale (= series of notes)
However, this scale is commonly represented with the first and last half step each being represented as a quarter tone.
Yan did nt change the color of his face, not going behind half step.
The constraint on the leg tip position is active only on the almost middle of the half step.
The trajectory is defined only on one half step composed of a single support followed by a flight.
A passive impact exists at the end of the half step.
The legs swap their roles from one half step to the next one.
This note falls almost at the mid-point of his forty-eight-note gamut, which is at the b-c half step just above.
The condition of periodicity is used to define the trajectory only on one half step and to reduce the number of optimisation parameters.