This seems really really good if I'm reading it right so I want to confirm that I am reading it right.
It reads that everyone who accepts my raging song, gets these spirits and thus the attacks? Does this work with summoned monsters as well?
If it works this way, at level 3 it's going to be an additional +5 attack with 1d4+3 energy damage from EVERYONE in the party who takes the bonus as long as they are adjacent to an enemy.
Also, it appears that unconscious bodies automatically accept the raging song, so would they get these attacks as well?
Finally, would this happen the same round I start my performance for myself; I believe my allies would get the attacks but would my spirits get an opportunity to attack on the same initiative that I start the performance?