Sterling Masterclass Series

What better way to prepare our Artists for the future than by exposing them to top teachers and performers from around the country and the world?

Every month we bring a world-renowned teacher/performers to Philadelphia to coach our Artists, giving them a fresh perspective that fuels their passion.


Upcoming Masterclasses


Katharine Rawdon, Flutist

The American flutist Katharine Rawdon has been one of the most versatile musicians on the Portuguese scene since arriving in Lisbon. She has been Flute Section Leader in the Orquestra Sinfónica Portuguesa of the Lisbon National Opera House for 24 years, performing under eminent conductors including Rafael Frübeck de Burgos, Nello Santi, Antonio Pirolli, and Michel Plasson. Along with performing symphonic, opera and ballet repertoire, she has been soloist in the complete works of Bach, the Vivaldi Piccolo Concerto in C Major, and Alexandre Delgado’s Flute Concerto. She has also performed concertos with the O.S.P., the Gulbenkian Orchestra, the Orquestra Clássica do Porto, the Orquestra Nova Filarmonia, the National Orchestra of New York, the New York Concertante Orchestra, and the San Luis Chamber Orchestra in California, in works ranging from Mozart to Boulez. 

Before moving to Lisbon, she performed under Leonard Bernstein and Kurt Masur as a member of the Tanglewood Fellowship Orchestra and was presented twice at Weill Recital Hall at Carnegie Hall as flutist of the Manhattan Wind Quintet, which took First Prize in the Yellow Springs (Ohio) and Artists International Debut Competition (New York). She also performed with the Amorphous Consort, an ensemble dedicated to new chamber works including classical guitar, in New York City, Boston, and for WGBH and NRP Radio.

Her involvement with young musicians is long-standing: she has served on many juries for the Portuguese Young Musicians' Prize since 2003, regularly presents masterclasses, and maintains a private studio in Lisbon. Along with flutist colleagues Stephanie Wagner (Remix Ensemble) and Raquel Lima (ESMAE, Porto), she is a co-founder of the Academia de Flauta de Verão (Summer Flute Academy), an innovative course held since 2013 in Porto, Portugal, in July. She conceived the A.F.V.’s Composition Competition for Works for Flutes, which has four first-prize-winning works now published by Scherzo Editions and premiered in its 2014, 2015, and 2016 editions. 

Since 2009, she is an Adjunct Professor at ESART of the Polytechnic Institute of Castelo Branco, where in 2015 she was awarded the “Specialist Title” in Flute Performance, an equivalent to the DMA degree. She has also created several special concerts for children and families which have been presented at venues such as the Belem Cultural Center’s “Arts Factory”: “Mother Goose” (Ravel) in collaboration with Madalena Wallenstein, projects for the CCB's Big Bang Festival, as well as at the Lisbon National Opera House: Around the World in 20 Flutes” with Syrinx : XXII. 

Dennis Kim, violin

Dennis Kim was appointed Concertmaster of the Buffalo Philharmonic Orchestra in the spring of 2015. A citizen of the world, Mr. Kim was born in Korea, raised in Canada, and educated in the United States. Before coming to the BPO, he spent over a decade leading orchestras in Asia and Europe. Mr. Kim was first appointed Concertmaster of the Tucson Symphony Orchestra at the age of 22. He then served as the youngest Concertmaster in the history of the Hong Kong Philharmonic Orchestra, before going on to lead the Seoul Philharmonic Orchestra and the Tampere Philharmonic Orchestra in Finland. As guest Concertmaster, Mr. Kim has performed on four continents, leading the BBC Symphony Orchestra, London Philharmonic Orchestra, Royal Stockholm Philharmonic Orchestra, Helsinki Philharmonic Orchestra, Orchestre National de Lille, Montpelier Symphony Orchestra, Malaysian Philharmonic Orchestra, Western Australia Symphony Orchestra, and Symphony Orchestra of Navarra. He served as guest concertmaster with the Bergen Philharmonic Orchestra on their 10-city tour of the UK, and led the Qatar Philharmonic Orchestra in their BBC Proms debut in 2014.

After making his solo debut at the age of 14 with the Toronto Philharmonic Orchestra, Mr. Kim has gone on to perform as a soloist with every major orchestra in China and Korea. Highlights include performing on 10 hours’ notice to replace an ill William Preucil, performing the Vivaldi Four Seasons 20 times in one week, and touring Japan with the Busan Philharmonic in 2008. Additionally Mr. Kim has worked with many of this generation’s greatest conductors, including Riccardo Chailly, Charles Dutoit, Riccardo Muti, Andre Previn, Yannick Nezet Seguin, and Sir Simon Rattle. As a chamber musician, Mr. Kim has performed with leading musicians such as Pinchas Zuckerman, Jaime Laredo, Carter Brey, John Sharp, Marya Martin, and members of the Orion, Tokyo, and Guarneri string quartets.


A dedicated teacher, Mr. Kim has been on the faculty of the Hong Kong Academy of Performing Arts, Korean National University of the Arts, Yonsei University, Tampere Conservatory, and the Bowdoin International Music Festival, Atlantic Music Festival, and Suolahti International Music Festival. His students have been accepted to the Curtis Institute of Music, Colburn School, Juilliard School, Peabody Conservatory, and the Queen Elizabeth College of Music and play in orchestras around the world. In the summer of 2016 he will serve on the faculty of the Interlochen Center for the Arts as a Valade Concertmaster, working with students in the World Youth Symphony Orchestra program.

A graduate of the Royal Conservatory of Music in Toronto, the Curtis Institute of Music, and the Yale School of Music, Mr. Kim's teachers include Jaime Laredo, Aaron Rosand, Peter Oundjian, Paul Kantor, Victor Danchenko and Yumi Ninomiya Scott. Mr. Kim plays the 1701 ex-Dushkin Stradivarius, on permanent loan from a generous donor.



Jonathan manness

Jonathan Chrystal Manness is a trumpet player and composer in Los Angeles.

As a trumpet player, Jon currently tours with Mexican pop stars Gloria Trevi and Alejandra Guzmán on their Versus World Tour, which has been selling-out arenas across the US, Mexico, and South America. When he’s home, Jon is heavily involved in the Hollywood commercial music scene, regularly playing at The Sayers Club, The Viper Room, and Lucky Strike Live. He’s recorded for CeeLo Green, Magic Mike Live, Alex Sparrow, Dezmond Meeks, and Zahir Ashe, and works with songwriters and producers in every genre. As a horn arranger, Jon

formed The Redline Horns, a 3-piece horn section that performs funk, soul, and rock music in Los Angeles. The Red Line Horns are currently touring with the Gloria Trevi Vs. Alejandra Guzmán Versus World Tour.

As a composer, Jon’s first LA gig was scoring AVATAR Extended Blu-ray special feature “The Night Before AVATAR.” Since then, he’s written advertising music for MICROSOFT, arranged for the

live bands at HERSHEYPARK Theme Park, received commissions from the US ARMY and public schools around the country, and scored over a dozen independent films. In television, Jon’s music has appeared on CBS, TLC, Bravo, and PBS. Jon’s music is featured on THIS IS HOME, a podcast about families brought together through unlikely circumstances and the remarkable relationships they forge. His latest project was writing additional music for THE MORTIFIED GUIDE, a new series from the team behind the Mortified Podcast that celebrates the misguided ways we navigated life’s biggest issues as kids – from romance to family to rockstar obessions (available for streaming soon).

As a concert composer, Jon recently guest-conducted the West Coast premiere of his piece, Western Frontier, performed by the Caltech-Occidental Concert Band. His latest jazz band commission, Fee-liz Funk, premiered at the 2016 Pennsylvania Music Educators Association (PMEA) Conference.

As an educator, Jon has taught film scoring and composition courses at West Chester University of Pennsylvania and California State Summer School for the Arts (CSSSA). He also visits music programs around the country as a clinician.

Visit Jon’s website at to learn more about his latest shows and projects.