https://asmac.org/
ASMAC - American Society of Music Arrangers and Composers
american societymusic arrangerscomposers
https://www.nesmslibrary.org/w-php/cmp.php?letter=Horn,%20Charles%20Edward
NESMS Library Music Scores - Composers/Arrangers
NESMS provides advanced tuition for promising musicians living in Scotland. Registered Charity SCO 00197. Scholarships available. Founded by Dorothy Hately in...
library musicscorescomposersarrangers
https://www.musicarts.com/arrangers-allegro-barbaro-concert-band-level-3-arranged-by-tom-wallace-main0259973
Arrangers Allegro Barbaro Concert Band Level 3 Arranged by Tom Wallace | Music & Arts