RYTHM

Rhythm is a harmonic sequence of occupied space, free space or repeated forms in an image. Any kind of sequence describes a trajectory that organises a surface and gives the impression of dynamic impulses. These trajectories can be horizontal, vertical, sloping, concurrent in same point…
Uniform rhythm: this takes place when we repeat the same form in a constant and regular way.
Alternate rhythm: alternation is the repetition of a filled-space element followed by an empty one. The use of two or more elements with different positioning, shape, size, colour or texture accentuates the dynamism of the sequence.
Increasing and decreasing rhythm: we create this type of rhythm by successively changing size, thickness, height or colour.
Radial and concentric rhythm: when elements start as a central point and open outwards in a sequential way, rhythm is organised by imaginary radii. In the same way, concentric rhythm stars as the centre and the elements expand out towards the outside.
Modular rhythm: a module is a set of grouped forms that create a visual unit when put together. Just like rhythms using only one form, modular ones can create a uniform rhythm, an alternate rhythm with two or more modules, an increasing rhythm…
Symmetrical rhythm: this is another way of generating sequences either with just one form or with modular visual units. 
Rhythmic surfaces: this rhythm can move in all directions, crossing and occupying the entire surface.
Free rhythm: to work with free rhythms easily, you should distribute the forms on an imaginary line that follows a sequential path. The only thing you should keep in mind is the repetition of the elements of the composition.