Piano Note Frequencies Chart - Helmholtz Notation & Hz Reference #2054844 (License: Personal Use)

This detailed chart maps all 88 piano keys-white and black-to their corresponding frequencies in hertz and Helmholtz notation (e.g., C₄, A₃#, f′′), with A₄ (440.00 Hz) highlighted as the international tuning standard. The layout mirrors a real piano keyboard, enabling quick identification of octaves, sharps/flats, and pitch relationships across the full range from A₀ (27.50 Hz) to C₈ (4186.01 Hz). Designed for accuracy, it includes decimal precision for scientific and musical applications.

Used on music theory websites, tuning guides, digital audio workstations (DAW) documentation, and educational resources for students learning acoustics or piano. Matches user intent for pitch reference, instrument calibration, or understanding musical scales and equal temperament.