It's 3.0 material, but... there's an article in Dragon 301 that lets you invest ranks into Perform specializations called Masterwork Performances. Put skill points in, get better musics. The boost to Inspire Courage improves the normal +1 of 3.0 to +3... which would reasonably mean it would grant a straight +2 bonus in 3.5 to your Inspire Courage.
The article was called Meter and Measure.
Duly noted and integrated
24 effective levels of Bard = 4 free levels that can come off of Virtuoso (since he's not gonna hit the magical 26). We're at Bard 8/Virtuoso 2/Sublime Chord 2/Virtuoso 3-6/Incantatrix 4, an IC of 4 (effective bard level 20 IC) + 1 (Battle Rattle) +1 (Song of the Heart) +2 (Masterwork Performance) +1 (Badge of Valor) +1 (Inspirational Boost spell) = +9, +18 with Words of Creation, +36 to a single person with Focused Performance. Whoa.
EDIT : Damn, and that article includes notes and tables for making your own Masterpieces. Make one for +10 attack and damage on Inspire Courage
Here's a buff sequence for ya, assuming Lingering Song :
Maximized Time Stop (5 free rounds)~>Inspire Courage (+68 to hit and damage)~>Inspire Courage, Dragonfire Inspiration (+68d6 energy damage)~>Inspire Heroics (+16 AC and saves)~>Whatever you want for the last two. Come out of the time stop as Goku and own face.