(Creative Anthems and Resources for Children's Choir). It's children's choir rehearsal time....AGAIN! Here is a budget-stretching creative answer to filling a variety of needs for a multitude of rehearsals and performances. Packed with creative activities tips anthems (for all seasons) warm-ups and rounds this is a collection you'll use time and again all year long. Available: Director's Manual (w/ reproducible pages) ChoirTrax CD Preview CD Preview Pak. For Gr. 1-6.