Question: who has the highest pitch of voice Daryl Hall or Steven Tyler 

full_context: Document 1: Darryl Hall: Darryl Edgar Hall (born August 1, 1966) is a former Grey Cup champion and all-star Canadian Football League defensive back. He also played 3 years in the National Football League with the Denver Broncos and San Francisco 49ers.
Document 2: Dee Snider: Daniel "Dee" Snider (born March 15, 1955) is an American singer-songwriter, screenwriter, radio personality, and actor. Snider came to prominence in the early 1980s as lead singer of the heavy metal band Twisted Sister. He was ranked 83 in the "Hit Parader"<nowiki>'</nowiki>s Top 100 Metal Vocalists of All Time.
Document 3: Terry Fator: Terry Wayne Fator ( ; born June 10, 1965) is a ventriloquist, impressionist, comedian, and singer from Dallas, Texas. Fator does ventriloquial impersonations, and uses 15 different puppets in his act. He was the winner of season two of "America's Got Talent", and received the million dollar prize. The following year, he was signed on as the headliner at The Mirage hotel and casino in Las Vegas, Nevada with a five-year, $100 million contract.
Document 4: Bruce Hornsby: Bruce Randall Hornsby (born November 23, 1954) is an American singer and keyboardist.
Document 5: Hall &amp; Oates: Daryl Hall and John Oates, often referred to as Hall & Oates, are an American musical duo from Philadelphia. Daryl Hall is generally the lead vocalist of the pairing. John Oates primarily plays electric guitar and provides backing vocals. The two write most of the songs they perform, either separately or in collaboration. They achieved their greatest fame from the late 1970s to the mid-1980s with a fusion of rock and roll and rhythm and blues.
Document 6: Aerosmith: Aerosmith is an American rock band, sometimes referred to as "the Bad Boys from Boston" and "America's Greatest Rock and Roll Band". Their style, which is rooted in blues-based hard rock, has come to also incorporate elements of pop, heavy metal, and rhythm and blues, and has inspired many subsequent rock artists. They were formed in Boston, Massachusetts in 1970. Guitarist Joe Perry and bassist Tom Hamilton, originally in a band together called the Jam Band, met up with vocalist/pianist/harmonicist Steven Tyler, drummer Joey Kramer, and guitarist Ray Tabano, and formed Aerosmith. In 1971, Tabano was replaced by Brad Whitford, and the band began developing a following in Boston.
Document 7: Daryl Hall: Daryl Franklin Hohl (born October 11, 1946), known professionally as Daryl Hall, is an American rock, R&B, and soul singer; keyboardist, guitarist, songwriter, and producer, best known as the co-founder and lead vocalist of Hall & Oates (with guitarist and songwriter John Oates).
Document 8: Darius Rucker: Darius Carlos Rucker (born May 13, 1966) is an American singer and songwriter. He first gained fame as the lead vocalist and rhythm guitarist of the Grammy Award-winning American rock band Hootie & the Blowfish, which he founded in 1986 at the University of South Carolina along with Mark Bryan, Jim "Soni" Sonefeld and Dean Felber. The band has released five studio albums with him as a member, and charted six top 40 hits on the "Billboard" Hot 100. Rucker co-wrote the majority of the band's songs with the other three members.
Document 9: Steven Tyler: Steven Tyler (born Steven Victor Tallarico; March 26, 1948) is an American singer-songwriter, multi-instrumentalist, and former television music competition judge, best known as the lead singer of the Boston-based rock band Aerosmith, in which he also plays the harmonica, and occasional piano and percussion. He is known as the "Demon of Screamin'" due to his high screams and his wide vocal range. He is also known for his on-stage acrobatics. During his high-energy performances, Tyler usually dresses in bright, colorful outfits with his trademark scarves hanging from his microphone stand.
Document 10: Live from Daryl's House: Live from Daryl's House (simply known as Daryl's House, and often abbreviated as LFDH) is an online series that was first created in fall 2007. The show features singer-songwriter Daryl Hall performing with his band and various guest artists at his home in Millerton, New York. The show provides a performance space that is an alternative to live concerts and studio sessions for popular artists. This allows the artists to "…have fun and [be] creatively spontaneous". The majority of shows include a segment in which Hall and the guest artist prepare food from different cuisines for everyone to eat. The food comes from various local restaurants and the chefs of those establishments walk Hall and guest through the preparation of the food. "Live From Daryl's House" expanded to broadcast TV but remained unchanged. Hall was quoted by Billboard.com as saying "it's an Internet show that is being shown on television, so I'm not adapting the show at all in any way to be a 'TV' show." The show debuted in 95 markets on September 24, 2011, with back-to-back half-hour episodes featuring Train (Episode 33) and Fitz & the Tantrums (Episode 35). Starting with the 66th episode of "Live From Daryl's House", the shows are filmed at Hall's club, Daryl's House, in Pawling, New York.
Document 11: Aaron Hall (singer): Aaron Hall (born August 10, 1964, The Bronx, New York City and growing up in Brooklyn and Roosevelt, Long Island), is an American soul singer and songwriter. He is a current member of the group Guy, which he founded in the late 1980s, along with New jack swing producer Teddy Riley and songwriter Timmy Gatling, who was later replaced by Hall's brother Damion Hall. In 1988, they released their debut album which went on to sell over a million copies being certified platinum. Hall led the group in songs like "Groove Me", "I Like" and "Piece Of My Love".
Document 12: Meat Loaf: Michael Lee Aday (born Marvin Lee Aday; September 27, 1947), better known by his stage name Meat Loaf, is an American musician, singer, songwriter, record producer, and actor.
Document 13: Rock 'n' Roller Coaster Starring Aerosmith: Rock 'n' Roller Coaster Starring Aerosmith is an enclosed launched steel roller coaster at Disney's Hollywood Studios at the Walt Disney World Resort and at the Walt Disney Studios Park in Disneyland Paris (where it is called "Rock 'n' Roller Coaster avec Aerosmith"). As the attraction's name suggests, the coaster features Aerosmith members, Steven Tyler, Joe Perry, Tom Hamilton, Joey Kramer, and Brad Whitford.
Document 14: Ronnie James Dio: Ronald James Padavona (July 10, 1942May 16, 2010), better known by his stage name Ronnie James Dio, was an American singer, songwriter, and musician. He fronted and/or founded numerous groups including Elf, Rainbow, Black Sabbath, Dio, and Heaven & Hell. He is credited with popularizing the "metal horns" hand gesture in metal culture and was known for his medieval-themed lyrics. Dio possessed a powerful versatile vocal range capable of singing both hard rock and lighter ballads.
Document 15: Steve Augeri: Steve Augeri (born January 30, 1959) is an American rock singer best known for his work with Tall Stories, Tyketto, and Journey.
ground_truth: Steven Tyler