pedalier
/ˌpɛd(ə)ˈlɪə/ /pɪˈdalɪə/Music
noun
The pedalboard of an organ; a similar set of pedals attached to a piano or harpsichord (sometimes provided with its own soundboard and strings in an oblong box, to be placed under the main instrument).
Origin
Mid 19th century; earliest use found in The Times. From French pédalier from pédale + -ier.