(B.C. in C) This release from the Sounds of Series is indispensible to fill plenty of solo and ensemble needs! Whether it's a soloist using a book (accompanied by piano or fully-orchestrated accompaniment track) or two, three, four players...or a full orchestra, Sound of Christmas is a uniquely flexible idea for church instrumentalists! Each book includes a solo line and an ensemble line. Mix and match lines with different instruments and combinations of players.