Glen Hansard and Markéta Irglová of The Swell Season feel no need to write every day. They both wait patiently for a spark. "I have no worries if I don't write anything. I'm available 24/7," Hansard says. "I never noodle, never rehearse, never just play around." For Irglová, she feels a current. "There's something calling me to the piano. There's a feeling. I plant the seed, then let it ruminate by doing something else like taking a walk," she says. 

Both can write most anywhere. Hansard wrote his song "Her Mercy" while waiting at a baggage claim in New Zealand. Irglová only needs space: she can't write in a busy place, which is why Iceland, where she lives, is ideal.

The Swell Season won the 2007 Academy Award for Best Original Song for "Falling Slowly". Their latest album is Forward.