How many Grammy Awards has the soprano who gave Vocalise its world premier won?
two
Title: Paul Epworth
Passage: Paul Richard Epworth (born 25 July 1974 in Bishop's Stortford, Hertfordshire) is an English music producer, musician, and songwriter.  His production and writing credits include Adele, Rihanna, and Maxïmo Park amongst many others.  On 12 February 2012 at the 54th Grammy Awards, Epworth won four Grammy Awards for Producer of the Year, Album of the Year (Adele's "21"), and Song of the Year and Record of the Year (for "Rolling in the Deep").  He won the Academy Award for Best Original Song alongside Adele, for "Skyfall".  His sister Mary Epworth is a singer and songwriter.  He is a member of the Music Producers Guild.  He also has a record label, Wolf Tone, whose artists include Glass Animals, Rosie Lowe and Plaitum.  He has won 'Producer of the Year' at the BRIT Awards three times, the most recent in 2015.  At the 59th Grammy Awards in 2017, Epworth won a Grammy for Album of the Year for his work on Adele's 25".
Title: Sylvia McNair
Passage: Sylvia McNair (born June 23, 1956) is an American opera singer and classical recitalist who has also achieved notable success in the Broadway and cabaret genres.  McNair, a soprano, has made several critically acclaimed recordings and has won two Grammy Awards.
Title: Vocalise (Corigliano)
Passage: Vocalise is a composition for soprano, electronics, and orchestra by the American composer John Corigliano.  The work was commissioned by the New York Philharmonic under the direction of Kurt Masur with financial contributions from the Francis Goelet Fund.  It was given its world premiere by the soprano Sylvia McNair and the New York Philharmonic under Masur at Avery Fisher Hall on November 11, 1999.  The piece is dedicated to Sylvia McNair.
Sylvia McNair Vocalise (Corigliano)