Hi! I really like the thematics of this class, and hope you feel encouraged to continue working on it. It's a great baseline to work from! Some thoughts:
- The descriptions are written somewhat vaguely, and to me it was hard understanding what did what. For example, compare Battle Ballads to the mechanically similar Chants. I think the color coding might also make it a bit worse, as it's just so much going on visually.
- The class is very spread out in stats; the talents rely on Dex, Cun and Will, while using weapons requiring Dex and Str. I think Battle Ballads could be cunning as well, and also:
- There should probably be some skill that allows you to use Cun instead of Str for daggers.
- ... and more of a side-note, but I'd love to see some support for wielding a single one-handed weapon with no off-hand. It would be a great fit for a flamboyant, musical scoundrel, whether it's a sword or whip.

Seems like this class should have some form of "using cunning instead of strength, with daggers".
Otherwise, you're a melee combat class with much lower scaling on your primary weapons than most, as you already need 3 stats for the class's skills and abilities.