About Us

At Buzz Music Group we have hand picked the best musicians around to take your wedding or event to the next level.

Our Musicians

A Music Agency You Can Trust

Cressida and Jonny run Buzz Music Group together. They played at numerous weddings and events as freelance musicians for many years before setting up Buzz. They both had varied performing careers playing with orchestras such as the Royal Philharmonic and working with bands such as Keane, Muse and for Classic Ibiza.

With their in depth knowledge of the musical repertoire and how events and weddings work from the inside, they knew they could make it a seamless, stress-free process for clients with no details missed. The pool of musicians who form part of the Buzz family, are all experienced, reliable and top quality players who have worked with some of the biggest names in the industry. They are accustomed to playing at high profile events including royal weddings.

As a company we strive to make classical music accessible to more people through discounted tickets in our Hennessey Brown Music concert series. We also donate to mental health charities and believe in valuing musicians, paying them fairly for their hard work.

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Our Team

Meet the team behind Buzz Music Group

Jonathan Hennessey-Brown


Jonathan graduated from the Royal College of Music in 1997. He has always looked for variety in his work and has been lucky enough to perform with musicians and artists such as Placido Domingo, The Wanted on Radio 1’s Live Lounge, Cuban National Ballet, the London Concert Orchestra, 4 Hero the Drum and Bass band and the Royal Philharmonic Concert Orchestra. Jonny is one of the regular cellists at Lion King and has played on various sessions for film and TV at Abbey Road Studios. Jonny’s TV experience has included playing on X-Factor, Strictly Come Dancing and the House Band for ITV’s Popstar to Operastar.

Jonny spent 6 years in Mexico as the principal cellist and chairman of the orchestral committee of the Yucatan Symphony Orchestra. Jonny was the founder member of The Santiago Quartet , a group specialising in Latin American music. They had a number of popular releases including and have performed on BBC Radio 3, Radio 4, Classic FM and on Tom Robinson’s show on the BBC’s 6Music. Sir Bob Geldof described their latest album as “Sexier than 50 Shades of Grey” after hearing a track performed live on Radio!

Cressida Wislocki


Cressida has enjoyed an exciting and varied career as a freelance orchestral, chamber and session musician for the past 20 years. Her orchestral work includes playing with the BBC Philharmonic, City of Birmingham Symphony Orchestra and Royal Philharmonic Orchestra.

She has worked in both the pop and classical worlds playing alongside many well known artists including Muse, Ella Eyre, Madness, Keane and Andrea Bocelli. She has played for BBC Radio 1 Live Lounge, Front Row on Radio 4 and In Tune on Radio 3 as a member of The Santiago Quartet.

She has experience managing people and negotiating contracts through her work in music and film. Cressida has worked with many of the musicians on our books for many years and there is mutual trust in those relationships.


We are making quite the Buzz! Read some of the mentions and articles where we have been mentioned.

Sunday Hive Sessions with Buzz Music Group at The Troubadour

Fresh On The Net

Sofðu unga ástin mín – An Icelandic lullaby.

Classic FM


We are making quite the Buzz! We love to hear great things back from out clients and the amazing experiences they have helped them have.

The music from the quartet was beautiful.

You are obviously all accomplished musicians and you did us proud. It was an absolute pleasure to meet you all.”

Bill Brown, Tatton Hall, Tatton Park

Their performance was excellent and they had everyone on the dancefloor from the start. The feedback that we received from our staff afterwards has been so positive! We wouldn’t hesitate to use USO again. Top class professionalism coupled with excellent musicality is what you get when you book USO.

After wedding blessing performance at Spread Eagle Hotel, Midhurst

Thank you all for coming… you were absolutely wonderful and I cannot state how glorious I thought you were!

Thank you so much…”

After wedding blessing performance at Spread Eagle Hotel, Midhurst


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