Irish bouzouki Dónal Lunny, who replaced the octave strings on the two lower G and D courses with unison strings, thus reinforcing their lower frequencies. Soon after, on a visit with Irvine to the workshop of luthier Peter Abnett, Lunny commissioned a bouzouki to the specifications of a classic, 4-course Greek bouzouki but with unison strings and a three-piece, partially staved back. Since then, the instrument has been adapted for Irish traditional and other styles of folk music. The original Greek bouzouki was a three course/six-string instrument ("trichordo"). In the 1950s, a four course/eight-string ("tetrachordo") version was developed. The newer "tetrachordo" bouzouki
Pulling Strings (White Collar) from the previous week. "Pulling Strings" received mostly mixed to positive reviews, with many critics praising Tom Skerritt's performance, but with many criticizing the use of Hilarie Burton's character. Kenny Herzog of "The A.V. Club" gave the episode a B+ rating, praising Channing Powell's writing in a mostly standalone episode. While he complimented Bomer and Garson's rapport and Garson's scenes at the Burke home, he stated that Burton's character "continues to feel just off." He went on to say that the episode is "once again an example of ... just how good they've gotten at making "White Collar" tick." Hilary