Okay, so you have Troubadour and Nightingale maxed just like every other BRD. You have minuet capped and no one cares about the other song you capped, but it's probably madrigal - just like every other BRD. A BRD with MACC staves has no trouble landing songs, so those singing merits are wasted (if you have those) and the instrument skills are wasted because they're unneeded for anything. I don't even want to imagine what ridiculous stats you merited but none of those are making you "uniquely good" at BRD either. The difference between a good BRD and a "regular" BRD are affinity casting time magian staves, MACC magian staves, 99 Daurdabla and Gjallarhorn, and knowledge of how to overwrite Dardaubla songs with Gjallarhorn songs properly. None of these distinctions come from the merit system.