I totally disagree with the /BRD comment, it takes a good ammount of knowledge and skill to do it right. While your Madrigal isnt as strong its still an Acc Boost that is useful for something like Torama which has high evasion, and Acc up is Acc up. If you are smart you sing Madrigal first and while the mob is near death ballad then switch to Dark Staff and rest. Chains actually go faster this way if you actually put in the effort.

Ballad is Ballad, it has no difference subbed or main, thats a huge point in this. That and more people get Refresh which will overtake Auto Refresh if you know what you are doing and it can become very busy.