ist ▁of ▁the ▁W orm s ▁C athedral . ▁The ▁organ ▁is ▁used ▁mostly ▁in ▁services , ▁but ▁has ▁been ▁played ▁in ▁concert s ▁of ▁artists ▁such ▁as ▁K ale vi ▁K iv ini emi . ▁In ▁ 2 0 0 5 ▁Graham ▁Water house ▁was ▁the ▁solo ist ▁in ▁the ▁premi ere ▁of ▁his ▁C ello ▁Con cer to ▁in ▁the ▁chamber ▁version ▁on ▁ 5 ▁August ▁ 2 0 0 5 . ▁G ior a ▁Fe id man ▁and ▁Matth ias ▁Eisen berg ▁performed ▁a ▁du o ▁programme ▁on ▁ 1 4 ▁November ▁ 2 0 0 8 . ▁Christian ▁Sch mitt ▁played ▁in ▁ 2 0 0 7 ▁with ▁the ▁chamber ▁cho ir ▁of ▁the ▁Hoch schule ▁für ▁Musik ▁und ▁Dar stell ende ▁Kunst ▁Frankfurt , ▁conducted ▁by ▁Wolfgang ▁Sch ä fer , ▁who ▁returned ▁in ▁ 2 0 1 0 ▁to ▁conduct ▁the ▁Frank fur ter ▁Kam mer chor . ▁ ▁Church ▁music ▁▁ ▁Franz ▁F ink ▁has ▁been ▁the ▁cant or ▁of ▁St . ▁Martin ▁since ▁ 1 9 9 2 , ▁conduct ing ▁five ▁musical ▁groups , ▁a ▁children ' s ▁cho ir ▁, ▁the ▁, ▁the ▁Martin is ▁( a ▁chamber ▁cho ir ▁of ▁mostly ▁young ▁people ), ▁the ▁, ▁and ▁the ▁ ▁on ▁period ▁instruments . ▁The ▁church ▁cho ir ▁was ▁named ▁ ▁in ▁ 1 9 7 3 . ▁The ▁Martin is ▁were ▁founded ▁in ▁ 1 9 8 8 ▁by ▁Thomas ▁Gabriel ▁as ▁a ▁youth ▁cho ir . ▁ ▁All ▁groups ▁perform ▁in