Rhythms are patterns of sounds and silences. Our bodies often want to move in time to strong rhythms which is why rhythm is so important to dance music and pop music.

Rhythms serve as musical accompaniment to many pieces of music.

Brain Waves characterized by a relatively high voltage or amplitude and a frequency of 8-13 Hz. They constitute the majority of waves recorded by EEG registering the activity of the parietal and Occip [..]

Brain Waves with frequency greater than 13 Hz seen on EEG during Wakefulness.

Brain Waves seen on EEG characterized by a high amplitude and a frequency of 4 Hz and below. They are considered the "deep Sleep waves" observed during Sleep in dreamless states, infancy, an [..]

Brain Waves characterized by a frequency of 4-7 Hz, usually observed in the Temporal Lobes when the individual is awake, but relaxed and sleepy.

The regular Recurrence, in cycles of about 24 hours, of Biological Processes or activities, such as sensitivity to Drugs and stimuli, Hormone Secretion, sleeping, and feeding.

and u, with y considered a minor vowel).