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Soprano - Wikipedia
The Sopranos (TV Series 1999–2007) - IMDb
Voice type - Wikipedia
The Sopranos - Wikipedia
What is a soprano? - Classical Music
The 20 Greatest Sopranos of all time - Classical Music
20 of the greatest sopranos and mezzos of all time - Classic FM
The Sopranos | Official Website for the HBO Series | HBO.com
Soprano | High Notes, Bel Canto & Opera | Britannica
How to Find Your Vocal Range - LiveAbout