Song of the Heart

Prerequisites: Bardic music class feature, Inspire Competence Class Feature, Perform 6 ranks
Benefit: When you use inspire courage, inspire competence, inspire greatness, or inspire heroics, any bonus granted by your music increases by +1. Thus, a 15th-level bard with this feat grants his allies a +4 bonus on attack rolls, damage rolls, and saving throws against fear when he uses inspire courage, rather than the +3 he would normally grant. If he uses inspire greatness, the same bard grants up to three allies 3 bonus Hit Dice, a +3 bonus on attack rolls, and a +2 bonus on Fortitude saves.
Also, when you use fascinate, suggestion, or mass suggestion, the saving throw DC increases by 1.
If you have the Haunting Melody feat, the saving throw DC for that effect also increases by 1. If you have the Music of Growth feat, the bonus bestowed by that feat increases to +6. If you have the Music of Making feat, the bonus on Craft checks bestowed by that feat increases to +6. If you have the Soothe the Beast feat, you gain a +2 circumstance bonus on your Perform check to improve the attitude of an animal or magical beast.