Adelina Agostinelli - Tu che le vanità [Don Carlo] - 1910 

For such a standard aria from the soprano repertoire, it's surprising that it took well into the electrical era for there to be a hallmarked recording of it. Agostinelli's recording, though unpublished, pre-figured Margherita Grandi's well known 1948 version by nearly 40 years.
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This channel is primarily about vocal emission-aural examples of basically correct singing, correct impostazione-chiaroscuro, vowel clarity, firm and centered pitch, correct vibrato action, absence of throatiness or thickness, sounds free from constriction and from the acoustic noise that accompanies it-with occasional video examples that demonstrate what the body, face, mouth, jaw, and tongue look like when used with correct impostazione-the vocal emission of the one and only Italian school.
Caveat: I'm biased in favor of baritones and baritone literature, but if you want to learn about and listen to all the greatest singers in the old-school tradition, explore this spreadsheet (voice parts are separated by tabs): bit.ly/2W4qmE3

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