great organ manual
/ˈɡɹeɪt ˈɔːɡən ˈmanjuːəl/
n
English · great organ manual中文 · 大键盘Español · teclado del órgano mayorFrançais · clavier de grand orgue
Bedeutung：Series of keys that make up the main keyboard, which is used to play the most important parts.