[on the singer Meissner]: “he as you know, has the bad habit of wobbling industriously with his voice. It really is abominable. It’s an unnatural way of singing. The human voice has a natural vibrato – but only to such a degree as is beautiful – that is the nature of the human voice. People imitate it not only on wind instruments, but on string instruments and even on the clavier. But as soon as you go too far, it ceases to be beautiful – because it is against nature.”

Wolfgang Amadeus Mozart (1756-1791)