Use this tag for questions relating to the bodily mechanics of playing an instrument. An effort should be made to distinguish [physiology] from [technique], though both tags may be appropriate in some cases.
Physiology is the science of life. It is the branch of biology that aims to understand the mechanisms of living things, from the basis of cell function at the ionic and molecular level to the integrated behaviour of the whole body and the influence of the external environment. (SOURCE: The Physiological Society)
Appropriate questions for this tag could relate to the use of one's hands to hold or manipulate an instrument; how to engage lips, larynx, or diaphragm when singing or playing a wind instrument; or how to coordinate movements of feet and hands/arms when playing a drum set.
An attempt should be made to distinguish questions of physiology from questions of technique. Although related, a reasonable rule of thumb (so to speak) is that physiology questions would lean more toward the interactions of anatomy within itself; whereas, technique questions would focus more toward the instrument.