Ecoute harmonique subjective (L')

While our eyes gladly revel in the famous trompe-l'oeil and other optical illusions, our ears cannot be deprived of such a treat in the heart of the sound universe. The present work gives us many keys, allowing, for example, to understand why the minor perception of major intervals (or the reverse) can, in certain cases, attest to a subtle and refined listening. Several analogous paradoxes are developed there, along with innovative teaching options.