I'm announcing my recently developed sample library for brass instruments (trumpets, horns, trombones, tubas):
https://sig-ex.com/2016/04/06/sustain-brass-sfz/
It can be obtained for free (pay-what-you-want donations are welcome
), and the other variants are very affordable (1.99 GBP and 7.50 USD).Here are some quickly made demo tracks:
https://soundcloud.com/sig-ex/sets/sustain-brass-sfz
Happy music making!