At age five my father suprised me when he brought a box with a magic instrument in it, a soprano saxophone. He taught the fingerings and my musical journey started. After graduating as a mathematician at the University I was admitted to the conservatory where I graduated as Master Jazz saxophone specialised in lead-alto playing. Later I also graduated as a Bachelor in Classical clarinet.

It’s my passion to inspire other people to enjoy the meaning of music. As a teacher (private lessons or workshops), as a  performer, as a conductor or composer. I specialised in integrating  jazz, pop and world music in classical ensembles, with improvisation being an important ingredient.

As a free-lance saxophone player I work with the Metropole Orchestra, WDR Big Band, Royal Dutch Airforce Band, the Noord Nederlands Orkest, Clazz Ensemble, Guido’s Orchestra and my groups JanZZn4! and Wood & Winds. I am the regular lead-alto player in the Konrad Koselleck Big Band and Holland Big Band, the LUNAR Ensemble and played musicals like “Jesus Christ Superstar”, “La cage aux folles”, “Annie”, “Chicago”, “Cats”, “Evita”, “Hairspray”, “Fame”, “Footloose”, “Assepoester”, “Joseph”, “Grace”, “Oorlogswinter”, “Miss Saigon”, “Kiss of the spider woman” and in the opera’s “Buwalski”, “Sancta Susanna” and “God’s Videotheque”.

I had the honour to be inspired by working together with Herbie Hancock, Pat Metheny, Toots Thielemans, Bono, Cliff Richard, Chaka Kahn, Mariza, Maria Schneider, Tori Amos, Randy Brecker, Vince Mendoza, Wynton Marsalis, Candy Dulfer and John Scofield and use these influences in my compositions.

  • Philhamonie Berlijn, tour met Tori Amos

  • Maria Schneider, Muziekcentrum van de Omroep, Hilversum

  • Met Candy Dulfer, Concergebouw, Amsterdam

  • Wood & Winds, Openluchttheater Valkenburg (L.)

  • Lead alto

  • Holland Big Band, de Doelen, Rotterdam

  • Symfonica in Rosso, Gelredome, Arnhem

  • Holland Big Band, de Doelen, Rotterdam

  • Konrad Koselleck Big Band, BIMhuis, Amsterdam

  • Saxofoonles met Sohta en Yuya Watanebe


the step by step online improvisation training

“step by step expressing your authentic musical story, every musician a happy improviser”

Creating your unique authentic musical story ? Like to learn how to  improvise ? Experiencing difficulties making music without sheetmusic ? Do you like to be able to memorize  songs  better ? Feeling uncomfortable if you have to play alone ?

Good news ! With my background as a mathematician, I developed the structured online training “impro circle”.  In only six steps you learn how to express your muscial fantasy on your instrument in all kind of different styles, from classical to rock, latin and jazz. To achieve this we work on what I belief are the four cornerstones of improvisation imagination, ear, vocabulary and courage. Available on four levels, from beginner to experienced improviser.

In your favourite environment, at any moment you like, you develop the ability to express YOUR authentic musical story. Prices from only € 147 for a six lessons course. More info on

Saxophone school IJburg

I teach saxophone, clarinet and flute for all levels and ages at “saxofoonschool IJburg”. I specialised in improvisation. I believe in a modern approach meaning that you only pay for the lessons you actually had. In our first lesson we make a plan which makes it possible to monitor your progression. It’s my passion and focus to help you discover and develop your path in music !


My compositions integrate classical music with jazz, pop and different kinds of world music. They are very melodic, nice to play and you can learn to improvise. Check out my composer’s page


I am the regular conductor of Woodwind Band “de Volharding”, Berkhout and Big Band Fort Night Swing. Regularly I also conduct Woodwind Band “de Hoop”, Stellendam, AMC Big Band, Small Town Big Band, Fellows Big Band, Jazz Warriors Big Band, Cotton Club Big Band and the Utrechts Jazz Orchestra.

To improve my skills as a classical conductor at this moment I study classical conducting at the Leopold Mozart University at Augsburg (Germany) with prof. Maurice Hamers.

The instruments I play

  • Selmer Mark VI soprano saxophone, serial number with vintage Selmer C* or E soloist mouthpiece
  • Selmer Mark VI alto saxophone serial number 72xxx with high F#, 74xxx or with early Babbit Meyer 7SM mouthpiece or Meyer 5 SS new mouthpiece
  • Selmer Mark VI tenor saxophone, serial number 102xxx with vintage Otto Link Florida 8 mouthpiece
  • Selmer Mark VI baritone saxophone, serial number 276xxx with Berg Larsen 115 SMS 1 mouthpiece
  • Buffet Crampon RC clarinet with Viotto N1 (classical) or Vandoren B45 mouthpiece (Jazz) mouthpiece
  • Buffet Crampon Prestige bass clarinet with Vandoren B45 mouthpiece
  • Muramatsu EX flute
  • EWI Akai 4000 S
  • Yamaha YPC 62 piccolo
  • Bansuri (bamboo flute) in F, G en C
  • Irish Rose Wood Flute in D


Janssen4!The Hammond Revisited ClazzDicke Luft Consorcio Fuente Y CaudalHIstoria del Tango Wood & WindsCycles
Doe Maar Ellington Project Fanfare Urmond Holland Bigband
Symphonica in Rosso The Music of Duke Ellington New Life Happy House
Jack Million Band Jack Million Band Janssen4! Konrad Kosseleck Big Band
Jump Jive and more Night & Day The Hammond Soul Jazz Project My favorites sing!
Metropole Orkest Simon Feenstra Trijntje Oosterhuis Van Puffelen
Peter en de Wolf Speak Out! The look of love ‘t IJ

2015 Snarky Puppy and Metropole Orchestra

2014 Anouk, Symfonica in Rosso

2014 Laura Mvula and Metropole Orchestra

2014 Loly Sparks

2014 Holly Mc Nish and Metropole Orchestra

2014 Nick & Simon, Kerst CD

2014 Wood & Winds, “Asian Dreams”

2014 Raul Midon and Metropole Orchestra

2014 Robert Glasper Experience and Metropole Orchestra

2013 Saxophone Quartet Dicke Luft – Heuer Werner Janssen alt sax

2013 Soundtrack film “De Nieuwe Wildernis”
2013 Nick & Simon Kerstalbum
2013 Simon Feenstra – Starting all over again Werner Janssen – bariton sax
2012 Guido’s Orchestra, Symfonica in Rosso, with Doe Maar CD/DVD
2012 Wood & Winds, Cycles Werner Janssen – sopraan sax

2012 Van Puffelen, Traan Werner Janssen – sopraan sax
2012 Soundtrack flm “Koning van Katoren”
2011 Musical Oorlogswinter
2010 Konrad Koselleck Big Band – My favourites sing Werner Janssen – alt sax
2009 Janssen 4! – The Hammond Revisited

2009 Janssen 4! – The Hammond Revisited Werner Janssen – klarinet
2009 Noord Nederlands Orkest – Symphonic Echoes of Pink Floyd
2008 Vera de Bree – Vanaf Vandaag Werner Janssen – sopraan sax
2008 Metropole Orchestra – Balkanopolis with Slobodan Trkulja
2008 Mischa van der Wekken – Momentum
2007 Metropole Orchestra – Peter en de Wolf (Prokoviev) & Nutcracker (Ellington) Werner Janssen – basklarinet
2007 Janssen 4! – The Hammond Soul Jazz Project Werner Janssen – bariton sax
2007 Holland Big Band  Plays the music of Loet van der Lee – Happy House
2006 Consorcio Fuente Y Caudal – Historia del Tango Werner Janssen – klarinet
2005 Opera Spanga – Sancta Susanna (P. Hindemith) klarinet 2
2005 Lonny – Lonny Werner Janssen – fluit
2004 Friso Kuperus and Jack Million Band – Night and Day
2004 Buwalski – a Road Opera (Opera Spanga)
2003 Wil Salden’s Glenn Miller Orchestra – Unforgettable
2003 Helmut Lotti
2002 Muiscal Grace
2001 Glenn Miller Memorial Orchestre (Frankrijk)
2000 Musical There’s no business like Showbusiness – Irving Berlin
1999 Jack Million Band
1996 Musical ANNIE
1989 Big Band Muziekschool Heerlen, Flashpoint