Flute,Piano - Level 2 - Digital Download SKU: A0.1112077 By Leona Lewis. By Brad Ellis, Iain James, Jez Ashurst, Leona Lewis, and Richard Stannard. Arranged by Phil Thrift. Christmas,Pop. Score and part. 9 pages. Phil Thrift #714249. Published by Phil Thrift (A0.1112077). The Leona Lewis hit One More Sleep has all the ingredients that make up a successful song for the holiday season. This is the flute + keyboard edition (in a different key) of the original recording for trombone and rhythm section, which you can hear on SoundCloud.