Requirement: Perform 11 ranks
Base effect: All allies within 30 feet completely negate the effects of all spells, spell-like and supernatural abilities on a successful save. This maestro performance can negate 1 effect per ally per day, plus 1 for every 5 siren levels (maximum 5 effects per day at 20th level).
You channel the melody of void into unraveling magic.
Weak Refrain: this effect works like a targeted dispel magic spell, using your siren level as caster level.
Intermediate Refrain: this effect works like a targeted greater dispel magic spell, using your siren level as caster level.
Strong refrain: this effect works either as an area greater dispel magic spell using your siren level as caster level, or as a targeted greater dispel magic, using the result of a Perform check –10 as the dispel check result.