Clarinet Duet Clarinet - Level 1 - Digital Download SKU: A0.581951 By Justin Bieber. By Adam Messinger, Justin Bieber, and Nasri Atweh. Arranged by John Gibson. Christmas,Pop. 2 scores. 4 pages. JB Linear #3578429. Published by JB Linear (A0.581951). Mistletoe by Justin Bieber is a simple, sweet Christmas Song set by John Gibson for two clarinets. There are simple syncopations and both parts stay below the break. This would be playable by 2nd year players. It is all about Christmas Love!