Plácido Domingo has a vocal range that is a weight between which two characteristics?
Plácido Domingo José Plácido Domingo Embil, {'1': ", '2': ", '3': ", '4': "} (] ; born 21 January 1941), known as Plácido Domingo, is a Spanish tenor, conductor and arts administrator. He has recorded over a hundred complete operas and is well known for his versatility, regularly performing in Italian, French, German, Spanish, English and Russian in the most prestigious opera houses in the world. Although primarily a "lirico-spinto" tenor for most of his career, especially popular for his Cavaradossi, Hoffmann, Don José, and Canio, he quickly moved into more dramatic roles, becoming the most acclaimed Otello of his generation. In the early 2010s, he transitioned from the tenor repertory into almost exclusively baritone parts, most notably Simon Boccanegra. He has performed 147 different roles.
Weighting curve A Weighting curve is a graph of a set of factors, that are used to 'weight' measured values of a variable according to their importance in relation to some outcome. An important example is frequency weighting in sound level measurement where a specific set of weighting curves known as A, B, C and D weighting as defined in IEC 61672 are used. Unweighted measurements of sound pressure do not correspond to perceived loudness because the human ear is less sensitive at low and high frequencies, with the effect more pronounced at lower sound levels. The four curves are applied to the measured sound level, for example by the use of a weighting filter in a sound level meter, to arrive at readings of loudness in Phons or in decibels (dB) above the threshold of hearing. (see A-weighting).