For Skull & Roses, Keller will be playing his Martin HD-28 acoustic with the Fishman Infinity Matrix pickup and Elixir resonator strings gauged 16-56 and tuned a whole step down. Keller plugs his Martin into a SMS Steel Guitar Black Box tube buffer for warming and sweetening of the tone. His effects pedals consist of an original MuTron III Envelope Filter, a Boss tuner, an MXR Phase Shifter, a “green” distortion/overdrive, a TC Electronic Hall of Fame reverb, and a Cry Baby Wah Wah. Keller uses a Sennheiser guitar and in ear wireless system. His pick of choice is the Dunlop 1.14mm purple.