The white key immediately to the left of the set of two black keys is what no pitch on the piano

Answer 1

The white key immediately to the left of the set of two black keys on a piano is the note C. In the context of the piano, there are no pitches that are considered silent or non-pitch; each key corresponds to a specific pitch. However, if you meant to refer to a specific situation or context where "no pitch" might be applicable, please clarify!