Apple has agreed to pay royalties during Apple Music’s three-month free trial, but The Wall Street Journal reports the royalty rate is still up for debate. The company has touted Apple Music’s 71.5 percent royalty rate as the highest in streaming music, but that rate is going to be applied to total monthly income from subscription fees. Until those payments start rolling in, there will be no subscriber income on which to base the rates. Apple declined to comment on how much rights holders will be paid during the trial, but said that rates will rise once customers start paying for subscriptions — leaving partners to wonder just how much lower the initial rates will be with only a week to go until the service’s launch. Apple Music’s largest competitor, Spotify, currently pays artists half of its usual royalty rate during promotional periods.