Watch Keller Williams: The Bluebird - Set One (2014) : Full Movie Online Free With the use of today's technology, Keller creates samples on the fly in front of the audience, a technique called live phrase sampling or looping. With nothing pre-recorded, and accompanying himself on acoustic guitar, the end result often leans toward a hybrid of alternative folk and groovy electronica. Filmed at The Bluebird in Bloomington Indiana on November 13, 2014.