Trombone Duet Trombone - Level 4 - Digital Download SKU: A0.1135964 Composed by Jenny Klein and Sonya Belousova. Arranged by Fabio Britto. Celtic,Film/TV,Folk,Irish,Video Game. Score. 7 pages. Fabio Britto #735988. Published by Fabio Britto (A0.1135964). Arrangement of the song Toss a Coin To Your Witcher (from The Witcher Netfilx Series) for Trombone Duo.