Composer Sheridan Seyfried’s melodic, accessible style connects with listeners of many different musical backgrounds. Firmly grounded in classical tradition, it is also influenced by styles including New Age, Celtic, folk, and the blues. His music has been performed at major venues such as Carnegie Hall and Washington D.C.'s Kennedy Center, has been broadcast nationally on American Public Media's Performance Today, and has been recorded on the Orchid Classics label.

Seyfried’s 2008 piano quartet Then Velvet Dark was written at the request of violinist Ida Kavafian for her ensemble OPUS ONE and premiered at Chamber Music Northwest (OR). Two years later, the same festival commissioned Seyfried's Sextet for clarinet, piano, and strings, which was premiered by an ensemble led by clarinetist David Shifrin. This piece has since become one of the composer's most-performed works, frequently appearing on the programs of Belgian clarinetist Roeland Hendrikx.

Seyfried frequently composes for the violin. His solo work Night was part of violinist Ray Chen’s prize-winning performance at the 2009 Queen Elisabeth Competition. His 2013 Violin Concerto was premiered by violinist Dennis Kim, with Beni Shwarz leading the Tampere Philharmonic (Finland). (He has since written a sonata for Kim and pianist Orli Shaham.) Seyfried's 2017 Double Concerto was premiered by violinists Nikki and Timothy Chooi, with Roger Kalia directing the Lake George Music Festival (NY) orchestra. This work has since been performed by many orchestras, including the Santa Fe Symphony. A performance by the Evansville Philharmonic (IN) led a reviewer to call the work “the highlight of the concert.”

Cellist Jonah Kim has championed many of Seyfried's works, recently commissioning Dancing in the Eye of the Storm (for cello and piano). When the piece debuted at Festival Mozaic (CA) in 2022, a reviewer called it “the audible incarnation of the thrilling.” Seyfried has an ongoing relationship with Trio Barclay, for whom he's written four full-length piano trios. Seyfried's frequent collaborators also include the ViMaDeAn Duo (violin and marimba) and pianist Sean Kennard, for whom he's composed a sonata.

Born in Philadelphia, Pennsylvania in 1984, Seyfried grew up playing violin in the Philadelphia Youth Orchestra. He credits this experience, as well as the children's audio book “Beethoven Lives Upstairs,” as important musical inspirations. As a teenager, Seyfried was mentored by composer James Grant. He went on to receive an ASCAP Morton Gould Young Composers Award in 2001, and was accepted to study at the Curtis Institute of Music the following year. His major mentors at Curtis included Richard Danielpour and Edward Aldwell. Upon graduation, he received awards for excellence in both composition and music theory, later teaching theory at both Curtis and Mannes College. Seyfried completed a graduate degree in composition at the Manhattan School of Music, where he studied with Nils Vigeland. He currently lives near Philadelphia, where he is also active as a church music director and educator. With his wife, composer and pianist Ya-Jhu Yang, Seyfried produces the Celtic to Classical concert series.