Ashtanga literally means eight limbs. Referring to the eight limbs outlined in the Yoga Sutras (morality, spiritual, postures, breath, transcendence, concentration, meditation and enlightenment). Ashtanga is a fixed sequence of athletic postures that are practised in a fixed order. There is a primary, secondary and advanced version and students master one series before they take part in the next. Ashtanga yoga is often preferred by Yogis who want a life transforming experience because of the 8 limb focus. Ashtanga and Vinyassa have breath centred movement. In an Ashtanga class a pose would be practiced on the right side then immediately the left side follows which gives a good feeling of balance. Ashtanga does not use music and is the most traditional style of yoga practice. Ujjayi breath is used (breathing through the nose but constricting at the throat to make a rasping noise). There is an equal focus between movement, stretching and holding postures.