choir organ manual
/ˈkwaɪəɹ ˈɔːɡən ˈmanjuːəl/
n
English · choir organ manual中文 · 唱诗班键盘Español · teclado del órgano positivoFrançais · clavier de positif
意味：Keyboard that controls a series of pipes at the front of the organ; its timbres are softer than those of the great organ.