What is it about Scotland that allows their earnest indie rockers to bear their souls so gravely without sacrificing dignity and grace? First Frightened Rabbit broke through in 2008, then Fat Cat labelmates We Were Promised Jetpacks followed in '09 with the boldfaced, big-hearted "These Four Walls."

What is it about Scotland that allows their earnest indie rockers to bear their souls so gravely without sacrificing dignity and grace? First Frightened Rabbit broke through in 2008, then Fat Cat labelmates We Were Promised Jetpacks followed in '09 with the boldfaced, big-hearted "These Four Walls."

Both bands brandish burly, warm, heavily accented narration by their respective frontmen. And both apply a stalwart rhythm section to sensitive guitar-based bombast. The major difference is that Jetpacks, who'll play The Summit Saturday with Lonely Forest and Bear Hands, attack with a bit more power and velocity, suitable for a band of such nomenclature.