Dance

Many cultures and species have a tradition of rhythmic movement, performed alone or in groups, as an important part of their cultural expression. Dances may have ceremonial, religious, or superstitious purposes, at least originally, or may be performed for social bonding, sheer enjoyment, or entertainment.

Asari

• Kharanessa: A more modern dance. It's an evolution of several other dances but a fair bit more on the erotic side; less appropriate for the big theatre. Quite fluid, it depends on fine control of the users' biotics to lift themselves.
• Lara'Se: It's also not as old as other dances, and brings in some figures inspired by other cultures -- but the main goal was, as with many asari dances, to help biotic training. Lara'Se has a big focus on teamwork, interacting with others' biotic fields, using your own in a calm and calculated manner.
• Leira'sei: Part of leira'sei is about knowing how to properly incorporate biotics in the routines if you need to, and how to do so without needing to use your arms and hands as a guide constantly. There are group routines where a whole troupe performs in the dark, using carefully controlled biotic fields to light up different parts of the stage -- though this can be dangerous if not performed by professionals.
• Sylatha: A fluid temple dance focused on a straight blade -- unusual, given the asari's tendency towards curved weapons, but it is symbolic. The blade is flexible, so appears to curve when spun -- representative of how even the most rigid of opinions can be bent towards compromise and unity in the right hands.
• Viera: A centuries-old traditional dance, it incorporates a lot of gestures that would become standard biotic mnemonics -- historians believe that it was first developed as a tool to help young asari control their biotics, as is often the case with asari styles.

Batarian

On Erszbat, families or groups of male friends might dance into the early hours of morning. In more rural areas, they would mostly gather after working hours as a whole family. These dances had their origins in old harvest festivals.

The monks who came to lead the Khar'shan Ascendancy have a tradition of ceremonial warrior dances.

Krogan

Contrary to alien expectations, krogan can and do dance; many clans incorporate fighting techniques into stylised performance.

• Habakur: A form of dance performed during ceremonies and feasts. Originally it was a war dance performed before clan warriors left for battle, but everyone seems happy in using it for non-violent celebration in the modern age.
• Vatarum: A martial dance form among Clan Drau. Traditional styles use weapons but a majority of warriors are dangerous enough simply kicking with their strong legs.

Quarian

Dancing has always been a large part of quarian culture. It's used to tell stories or for fun. Dancers themselves were also highly valued and the most talented ones were as celebrated as Holovision stars. Being able to perform really long and complex dances was a sign of status.

• Aladhava: A religious form involving intensive physical retention of over five thousand poses, to be called upon in quick succession to divine the ancestors’ knowledge.
• Balla'qan
• Basw'ai: An old harvest dance. It had to be reworked during the time of the Migrant Fleet because of the limited space and changes in culture that were necessary to survive, but the message and meaning was mostly the same. It was mainly performed on liveships but some of the other large vessels also had a performance every so often to boost morale when times were rough.
• Kisharia: A group dance that tells the epic of Kiera'Sali, a tragic figure in quarian history.
• Kiurn: A dance performed for fun.

Raloi

All Devraaki men are expected to know how to dance by the time they reach adolescence; it's the traditional way to meet women. It mostly consists of young men taking turns on the dance floor, performing feats of acrobatic one-upsmanship to try and impress prospective mates. Women have their own dances for reciprocating, but their reputations are not typically on the line unless it's some sort of organized competition. This raloi culture also has group dances for large celebrations (and sometimes teambuilding exercises in the military), which again is mostly something men do, but women are usually free to join in all but the most traditionalist communities.

Salarian

Some small agricultural clans have their own harvest festival dances that are performed in water.

Turian

Turian dancing is a bit understated compared to everyone else's. It's mostly rigid military stuff -- though there are a few light-hearted ones like the ever memetic "Invictus Strut".