Hello, when the change from "critical hits" to a flat rate happened, it seems like all the songs got an invisible buff to the rate that isn't mentioned anywhere.

For example at lower levels, it's 20% proc rate for Repertoire and then when the dots are upgraded, I think it changes to 40% but nothing in game or traitwise mentions this change to each proc for songs.

And this is not the straight shot proc but the general Repertoire proc.