▁( No . ▁ 7 7 2 ▁in ▁catalog ue ) ▁the ▁fre ts ▁are ▁letter ed ▁A , ▁D , ▁F , ▁A , ▁D , ▁F , ▁G , ▁A , ▁B , ▁C , ▁D . ▁ ▁In ▁Germany , ▁at ▁the ▁time ▁when ▁the ▁tr ump et ▁was ▁extens ively ▁used ▁in ▁the ▁churches , ▁n uns ▁often ▁subst it uted ▁the ▁trom ba ▁mar ina ▁because ▁women ▁were ▁not ▁allowed ▁to ▁play ▁tr ump ets — h ence ▁the ▁name ▁N onnen ge ige ▁( liter ally , ▁n uns ' ▁viol in ). ▁In ▁France , ▁the ▁Grande ▁E cur ie ▁du ▁Ro i ▁compr ised ▁five ▁tr ump ets - marine ▁and ▁c rom orn es ▁among ▁the ▁band ▁in ▁ 1 6 6 2 , ▁when ▁the ▁charge ▁was ▁mentioned ▁for ▁the ▁first ▁time ▁in ▁the ▁accounts ; ▁and ▁in ▁ 1 6 6 6 ▁the ▁number ▁was ▁increased ▁to ▁six . ▁The ▁instrument ▁fell ▁into ▁dis use ▁during ▁the ▁first ▁half ▁of ▁the ▁ 1 8 th ▁century ▁( see ▁equal ▁temper ament ), ▁and ▁was ▁only ▁to ▁be ▁seen ▁in ▁the ▁hands ▁of ▁it iner ant ▁and ▁street ▁mus icians . ▁ ▁In ▁modern ▁times , ▁the ▁group ▁Cor v us ▁Cor ax ▁still ▁regularly ▁plays ▁the ▁trom ba ▁mar ina . ▁ ▁See ▁also ▁Cr w th ▁Long - string ▁instrument ▁ ▁Notes ▁ ▁References ▁Att ribution ▁ ▁External ▁links ▁ ▁T rom ba ▁Marina ▁- ▁A ▁Study ▁in ▁Organ ology ▁T