Chant

Skill type. A chant gives a one-time benefit to either an ally or all of the members of the party within earshot range. Chants belong to the Paragon's line of skills. A chant is similar to a shout in that it is also earshot range, but shouts activate instantly.

Each chant has certain trigger conditions. Most chants only take effect when triggered, and end after they are triggered once. A few chants can be triggered multiple times before they end, and a few chants have an effect which ends when the chant is triggered.

Variations
There are 6 variations of chants, 7 including the monster-only Presence of the Skale Lord:

Triggered by Attack Skills, exact triggering criteria varies.
 * Anthem
 * (next hit, miss or block)
 * (next hit on a target above 50% Health)
 * (next hit)
 * (next activation)
 * (next hit or miss)
 * (next activation)
 * (next hit)
 * (next hit, buff which lasts until triggered)
 * (next activation)

Triggered by Spell activation.
 * Aria

Triggered by taking damage.
 * Ballad

Triggered by Chant or Shout activation.
 * Chorus

Triggered by Signet activation.
 * Lyric

Triggered by Skill activation.
 * Song
 * (Ends after activating Skills)
 * (buff which lasts until triggered)
 * (buff which lasts until triggered)

No trigger condition, monster only.
 * Miscellaneous