Song of freedom

While Obsidian has not confirmed the existence of song of freedom in NWN2, it is a class feature of the bard class which have been confirmed.

3.5 Song of freedom
This is a form of bardic music.

A bard of 12th level or higher with 15 or more ranks in a perform skill can use music or poetics to create an effect equivalent to the break enchantment spell (caster level equals the character’s bard level).

Using this ability requires 1 minute of uninterrupted concentration and music, and it functions on a single target within 30 feet.

A bard can’t use song of freedom on himself.