Chaos Music is also an amazing feat to take, especially if you're multiclassing. It adds four to your bard level for all bardic music related purposes, including (presumably) what types of music you have access to. The only downside is that it also gives you a chaotic aura.

Oh, and a fun combo: Slippers of Battledancing + Ring of Entropic Deflection + Snowflake Wardance. As long as you can keep moving, the Slippers of Battledancing replace your Strength mod with your Charisma mod for attack and damage rolls, which stacks with the Snowflake Wardance. The ring, meanwhile, gives a 20% miss chance to all ranged attacks made against you, which is upped to 50% by synergy with the Slippers. The best part? Unless I read the relevant descriptions horribly wrong, that includes ranged touch attacks.