There is evidence that the earliest Western musical notation, in the form of neumes in campo aperto (without staff-lines), was created at Metz around 800, as a result of Charlemagne's desire for Frankish church musicians to retain the performance nuances used by the Roman singers.
Hai evidencia de que na antiga notación musical Occidental, na forma de neumas in camp aperto (sen pentagrama), foi creada en Metz arredor do ano 800, como resultado do desexo de Carlomagno para que os músicos da Igrexa franca conserven os matices usados polos cantantes romanos .