Trapp is also the CEO of specialty retailer EMP, acquired by WMG in 2018.
Executives say a soft release schedule dampened revenue growth in the last two quarters. Data suggests the next two quarters will be better.
The third-largest label marked the second straight quarter of lackluster results for its recorded music division, with revenue roughly flat over the year-ago period.
During the company's earnings call on Tuesday, the CEO also said the company will "ensure that protection of intellectual property is high on the agenda."
Gregg Nadel will now helm the label solo as Easterlin steps into a consultancy role at Warner Music Group's artist services division WMX.
Also this week: Columbia Records UK has a new A&R head, mprs Global taps a COO and more.
Also this week: Warner Music Taiwan and Sony Music India board new managing directors and more.
On an earnings call, Kyncl addressed the future of both Warner and the business at large, commenting on AI, subscription streaming and TikTok.
Bardin arrives from Celonis, but previously spent 16 years at Google and YouTube.
Also this week: Santa Anna appoints a GM, American Urban Radio Networks names a Billboard alumnus as chief revenue officer and more.