In the Portland Cello Project, Anna Fritz plays a supporting role in crafting string renditions of contemporary pop, hiphop, and metal songs. In an ensemble that large, it's sometimes easy to become part of the wallpaper. But on her sophomore solo album, The Gospel of Tree Bark, Fritz escapes the shadows, building politically charged manifestos through slightly unhinged timbres and, sure, lots of cello. But Fritz is no one-cello pony; the album's second track, "On Wisconsin," is a scathing ode to protest, featuring 99 percenter lyrics like "Inside there are men in charge who don't care if our children starve/Our public servants serve themselves, or they tell us all to go to hell." It's that distrustful bent that makes Gospel an eerie, satisfying soothing listen. RYAN J. PRADO