Square and triangle waves do not exist in nature. What you get is always squiggly. > A square or triangular wave will still be a sound, with a distinct charact

Square and triangle waves do not exist in nature. What you get is always squiggly. > A square or triangular wave will still be a sound, with a distinct character to a sine wave of the same frequency. You're arguing with well known facts. Take some time to understand Fourier's theories.