Hahn may refer to:

Hilary Hahn (born November 27, 1979) is a Grammy-winning American violinist.

Hahn was born in Lexington, Virginia. Beginning her studies when she was three years old at Baltimore's Peabody Institute, she was admitted to the Curtis Institute of Music in Philadelphia at age ten, and in 1991, made her major orchestral debut with the Baltimore Symphony Orchestra. Hahn signed her first musical recording contract at age sixteen in 1996 with Sony Music. She graduated from the Curtis Institute in May 1999 with a Bachelor of Music degree.

Hahn plays on an 1864 copy of Paganini's Cannone made by Vuillaume. Her main interest is in solo performance; she also performs chamber music.

Hahn began playing the violin one month before her fourth birthday in the Suzuki Program of Baltimore's Peabody Institute. She participated in a Suzuki class for a year. Between 1984 and 1989 Hahn studied in Baltimore under Klara Berkovich. In 1990, at ten, Hahn was admitted to the Curtis Institute of Music in Philadelphia where she became a student of Jascha Brodsky. Hahn studied with Brodsky for seven years and learned the études of Kreutzer, Ševčík, Gaviniès, Rode, and the Paganini Caprices. She learned twenty-eight violin concertos, recital programs, and several other short pieces.

Johann Sebastian Bach (31 March [O.S. 21 March] 1685 – 28 July 1750) was a German composer, organist, harpsichordist, violist, and violinist of the Baroque Period. He enriched many established German styles through his skill in counterpoint, harmonic and motivic organisation, and the adaptation of rhythms, forms, and textures from abroad, particularly from Italy and France. Bach wrote much music, which was revered for its intellectual depth, technical command, and artistic beauty. Many of his works are still known today, such as the Brandenburg Concertos, the Mass in B minor, the Well-Tempered Clavier, and his cantatas, chorales, partitas, passions, and organ works.

Bach was born in Eisenach, Saxe-Eisenach into a very musical family; his father, Johann Ambrosius Bach was the director of the town's musicians, and all of his uncles were professional musicians. His father taught him to play violin and harpsichord, and his brother, Johann Christoph Bach taught him the clavichord, and exposed him to much contemporary music. Bach also sang, and he went to the St Michael's School in Lüneburg, because of his skill in voice. After graduating, he held several musical posts across Germany; he served as Kapellmeister (director of music) to Leopold, Prince of Anhalt-Köthen, Cantor of Thomasschule in Leipzig, and Royal Court Composer to August III. Bach's health and vision declined in 1749, and he died on 28 July 1750. Modern historians believe that his death was caused by a combination of stroke and pneumonia.

Sebastian Bach (born April 3, 1968) is a Canadian heavy metal singer who achieved mainstream success as frontman of Skid Row from 1987 to 1996. Since his departure from Skid Row, he has had many television roles, acted in Broadway plays, and led a successful solo career.

Bach was born Sebastian Philip Bierk on April 3, 1968, in Freeport, Bahamas, and raised in Peterborough, Ontario, Canada. He attended nearby Lakefield College School in the same class as Michael Kulas, of the British rock group James, a year behind Felipe, Prince of Asturias and a year ahead of the comedian/actor Will Arnett. He is of Norwegian, French Canadian, and Native American descent. Bach's father was the visual artist David Bierk. He is the brother of retired NHL goaltender Zac Bierk, model/actress Heather Dylan Bierk, and Toronto-based artists Jeff, Nick, Alex, and Charles Bierk.

Skid Row initially formed in the late eighties with lead singer Matt Fallon. They began playing at various New Jersey clubs. Fallon would soon leave the band in 1987, leaving Skid Row without a singer. Bach, who had just left his previous band Madam X, was spotted singing at rock photographer Mark Weiss's wedding and the members asked him to join. He turned them down, but changed his mind after hearing the demo tapes of "Youth Gone Wild" and "18 and Life". He sent them a demo of him singing "Saved By Love." They loved it and flew him to New Jersey where they began playing gigs. Sebastian also recorded demos with Bon Jovi & Sabo's friend Jack Ponti. (The song "She's on Top" later came out on Jack Ponti Presents Vol. 1)

Susan Graham (born July 23, 1960, Roswell, New Mexico) is an American mezzo-soprano.

Raised in Midland, Texas, she is a graduate of Texas Tech University and the Manhattan School of Music. She studied the piano for 13 years. She was a winner in the Metropolitan Opera's National Council Auditions, and also a recipient of the Schwabacher Award from the Merola Program of San Francisco Opera.

Graham made her international début at Covent Garden in 1994, playing Massenet's Chérubin. She has also premièred several roles in contemporary operas, including John Harbison's The Great Gatsby (Jordan Baker), Jake Heggie's Dead Man Walking (Sister Helen Prejean), and Tobias Picker's An American Tragedy (Sondra Finchley).

Graham is a noted champion of the French song repertoire and of songs by contemporary American composers, including Ned Rorem and Lowell Liebermann. Graham made her Carnegie Hall recital debut in April 2003, and a recording of this recital was later released.

Graham sang "Bless This House" at George W. Bush's second inauguration on January 20, 2005, and Schubert's "Ave Maria" at the nationally televised funeral mass for Senator Edward M. Kennedy of Massachusetts on August 29, 2009. She is a US delegate for UNESCO.