GJK Music

Composer | Conductor | Coach

I am Geert Jan Kroon (1981): a motivator, inspirator and creative optimist. Read more about my work as a composer, conductor and coach here. Also read what other people say about me in references. In my blog you can read some background stories.

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Geert Jan Kroon composer


I am active as a composer since 2014, and I write for brass band, fanfare band, concert band, but also for choir and orchestra. I work closely with Soli Brass Leeuwarden and was composer in residence with the Tullis Russel Mills Band in 2019 during their 100th anniversary. Next to that I worked with ensembles like the Swiss Army Brass Band, Carlton Main Frickley Colliery Band and CMV Oranje Grootegast.

My music for band is mostly published by Tower Editions. Some of my arrangements for brass band and my choir music is published through Sonolize. You can also order through my own webshop.

Geert Jan Kroon conductor


As a musical director I want to get the best out of my team. I also aim to inspire, teach and challenge musicians to get the best out of themselves. To achieve this, I think in possibilities, transferring my passion to the players and audiences and by programming challenging (new) music to trigger my musicians. The way in which I distinguish myself from other conductors is by making the most of my musicological background, my career as a composer and my thirst to grow and improve myself as a conductor.

Musicians describe me as enthusiastic, creative and a great motivator. They see me as a good communicator, teacher and connector. I truly believe that by focusing on these qualities and working from a position of inspiration and positivity, I will achieve my ambitions.

Are you looking for a conductor, dep (tuesday’s are free) or an interim condcutor for your ensemble? Contact me.

I work with or have worked with the following ensembles: Flevo Brass Emmeloord, MV Harmonie Akkrum, CMV Jeduthun Oldemarkt, Zomer Orkest Nederland (2020/2021), Lûd fan de Middelsee (artistiek leider), Nootstroom Orchestra (assistent), Soli Brass Leeuwarden (assistent), De Bazuin Ureterp, De Bazuin de Wetering, Pro Rege Heerenveen, KZHM Zeist, Stadsfanfare Bolsward, Crescendo Steenwijk, MV Opnieuw Verenigd Blankenham, MFO Luttelgeest.


Would you like to develop your skills as a composer or arranger?

Would you like to learn how to write more structured pieces and use your material more economically? Together we can work on this. Based on the work you are doing, we will look at what options you have in the development of a new piece.

Or do you want to improve your music editing or layout knowledge? I can help you with this. I have years of experience with Sibelius and recently Dorico.

Do you want to develop your conducting? And in a holistic way learn musicians to motivate and not to conduct from control? Based on a holistic approach, we dive into the deep together and see what suits you best as a conductor.

A free lesson takes 45 minutes. We will discus your goals and take the first step.


“Atmospheric and challenging, it will become an asset to the repertoire for horn and fanfare!”

Fokke van Heel (1ste Hoornist NedPho)

“Each [work] is underpinned by a connection to original ideas and themes – ones that are not tossed away thoughtlessly as the works progress: The linear development of the music is bold and malleable, enabling the listener to understand the what, why and how he has developed the inspiration.”

“At a time when emerging composers are finding it increasingly difficult to get their voices heard in the brass band world, it’s good to talk to a Dutchman who is determined to gain recognition by linking hard work to a desire not to lose his musical identity.”

Iwan Fox in An emerging Dutch voice

“His thrilling and beautifull writing proved to be something of an audience favorite.”

Thomas Dunne in Brass Band World, Issue 255, june 2016

“Special compliment for the choice of test pieces. I particularly experienced the work Saint Lambert by Geert Jan Kroon as a good test piece.”

Bob Childs in Greidebrass Spannum & Euphonia Ternaard winnaars GSF