Type: General
Source: Complete Mage
You can weave your music and magic together into a single perfect voice.
Prerequisite: Perform 4 ranks, Spellcraft 4 ranks, bardic music class feature.
Benefit: Whenever a Concentration check would be required to cast a spell or use a spell-like ability (such as when you cast defensively or are distracted or injured while casting), you can make a Perform check instead.
In addition, you can cast spells and activate magic items by command word or spell completion while using a bardic music ability. Bardic music abilities that requite concentration still take a standard action to perform.
Normal: A bard can't cast spells or activate magic items by command word or spell completion while using bardic music.