One is the loneliest number. That could be why David McMillin changed his solo project into the trio of Fort Frances. Joined by Jeffrey Piper and Aaron Kiser, McMillin forged a sound that harkens back to both the folk and psychedelia of the 1960s. Recorded in the isolation of a Maine farmhouse, the band’s debut album, The Atlas,employs everything from rustling wind and the ambient sounds of the country to more traditional keyboard and guitars with a healthy dose of reverb and distortion. Engaging lyrics include gems like, “Seven years running trying to find the ocean / Now the wind whispers, take me home my friend” in “The Ghosts Of California.” With words like that and melodies that keep them moving along, Fort Frances stays true to McMillin’s singer-songwriter ideals with an expanded band.