Montal's description of the ideal piano sound

"A good piano has to have a loud, round, full and large sound (the sound must have a long sustain). It's timbre should be a little metallic, that is to say not noisy/loverly loud/clear-cut/piercing nor dull and muffled but mellow and nervous (the sound should increase in intensity as the key is struck harder, progressively. Unfortunately this nervous quality is not always found in pianos)" Montal 1836


éclatante defined by Larousse: Se dit d'un bruit, d'un son très fort, très net, perçant : Voix éclatante.