7 Christmas Trios for Bb Clarinet trio by Keri Degg.
This collection contains; God Rest Ye Merry Gentlemen, The First Noel, See Amid The Winter's Snow, The Wassail Swing (Here We Come A Wassailing), O Come O Come Emmanuel, Carol Of The Bells, and I Saw Three Ships.
The trios vary in difficulty level so some are pretty much sight readable (or can at least achieve pleasing results with minimal practice), others, such as I Saw Three Ships, provide more challenge (it's in mostly 7/8 time and at a lively tempo).
The parts are written as to appeal to mixed ability players; the lower part (Clarinet 3) is generally the easiest and largely stays around grade 3 or under. The middle part (Clarinet 2) is about grade 4 maximum level in pitch range, but generally has more notes than the tenor part. Clarinet 1 receives far more of the technical gymnastics but still, around grade 5-6 is it's maximum difficulty level.
Take a look at the sample pages above (or even better, click on the pages to reveal the A4 PDF to print and try for free). A video is accessible below with audio excerpts from the collection (please note that the audio is for reference only, as we also have flute, and AAT/SAT Saxophone editions available too).