om mer " ▁in ▁F ie cht ▁in ▁Ty rol . ▁Since ▁ 1 9 8 8 ▁he ▁has ▁been ▁teaching ▁conduct ing , ▁b aton ▁technique ▁and ▁ch oral ▁conduct ing , ▁also ▁as ▁assistant ▁of ▁Gustav ▁Ku hn ▁in ▁the ▁field ▁of ▁sym phony ▁music . ▁He ▁has ▁also ▁head ed ▁the ▁two - year ▁sem inar ▁for ▁cho ir ▁conduct ors ▁offered ▁by ▁the ▁" T iro ler ▁S änger bund " ▁(" Ty role an ▁Ch oir ▁Association "). ▁From ▁ 2 0 0 8 ▁to ▁ 2 0 1 0 ▁he ▁taught ▁in ▁Egypt , ▁where ▁he ▁was ▁in ▁charge ▁of ▁sust ain able ▁musical ▁development ▁at ▁the ▁Se kem ▁In iti ative ▁and ▁at ▁the ▁H eli opol is ▁Academy ▁in ▁C airo . ▁Sie ber er ▁was ▁formerly ▁principal ▁guest ▁conduct or ▁of ▁the ▁chamber ▁cho ir ▁Ja una ▁M uz ika ▁in ▁Vil nius ▁and ▁has ▁been ▁cultural ▁commission er ▁of ▁the ▁town ▁of ▁K uf stein ▁since ▁ 1 9 9 3 . ▁Since ▁ 2 0 1 5 ▁he ▁has ▁been ▁present ing ▁a ▁radio ▁show ▁featuring ▁cho ir ▁music . ▁ ▁Art istic ▁activities ▁Cho irm aster ▁▁ 1 9 9 0 ▁to ▁ 2 0 0 8 ▁and ▁ 2 0 1 1 ▁to ▁present : ▁cho irm aster ▁of ▁the ▁chamber ▁cho ir ▁Colleg ium ▁V oc ale ▁In ns b ruck . ▁ 1 9 9 1 ▁to ▁present : ▁permanent ▁cho irm aster ▁of ▁the ▁vocal ▁ensemble ▁V