The term 'Piano Foot Lever' refers to the PEDAL found on a piano. This PEDAL is used to sustain notes and chords, allowing them to ring out for longer periods of time. It is also used to create a softer sound, as well as to add vibrato and other effects. The PEDAL is usually made of metal or plastic and is operated by the foot. The term 'Piano Foot Lever' is often abbreviated to 'PEDAL', which is the solution to the crossword.