String Trio Cello,Violin - Level 2 - Digital Download SKU: A0.1348456 By Sia. By Greg Kurstin and Sia. Arranged by Crystal Sound Music Arrangements. Chamber,Christmas,Contemporary,Holiday,Pop. 5 pages. Crystal Sound Music Arrangements #933212. Published by Crystal Sound Music Arrangements (A0.1348456). Instrumentation for String Trio 2 violins & celloString Ensemble - Level 3- Digital DownloadWords and Music by Sia Furler, Greg KurstinArrangement by Crystal Lee of Crystal Sound Music ArrangementsPop, Holiday, Christmas, Winter