Trombone and Bass Trombone


The wind faculty seeks to train students to become all-round musicians capable of functioning in all areas of the professional practice: from musical orchestras to big bands through to jazz, fusion, pop and Latin ensembles, both live and recorded. Students gain experience in a variety of musical situations, with ensemble playing, solo performance and improvisation as focal points. Separate courses are offered for lead trumpet and lead alto, these are unique in Europe.

The members of the trombone section are Bert Boeren, Martijn Sohier, and Ilja Reijngoud. Nils Wogram, Bart van Lier, Adrian Mears, Wycliffe Gordon and Robin Eubanks were guest teachers in the past years.

Co-ordinator: Martijn Sohier

Admission requirements
A pre-selection will take place for the entrance exam by means of recordings of two pieces from the jazz idiom and one piece of the candidate's choice, to be uploaded by the candidate in the application form. If the candidate's level of playing does not match the requirements, he/she will not be invited to take the entrance exam.

During the entrance examination, the candidate is tested on:

1. Playing skill
a. The committee will choose from three pieces from the standard jazz repertoire (theme and improvisation) of different character, tempo and key, prepared by the candidate, in which he/she shows the committee both command of the instrument and a reasonable rhythmic, harmonic and melodic understanding. In playing these pieces improvisation must be an important factor. For candidates who give priority to playing in an orchestra there are also possibilities. In this case improvisatorial skills are less important.
b. The candidate must also play written material, e.g. jazz solos, jazz etudes and/or classical etudes (bring four copies of sheet music for the examination committee).
c. Being able to play all major and minor scales and triads at a reasonable tempo.

The committee reserves the right to interrupt the candidate's playing as according to the committee, he/she has supplied enough information (because of the limited time of 30 minutes). Therefore it is important for the candidate to show his/her skills as quickly as possible: not too many and/or too long solos of fellow players, no unnecessary repetitions.

2. Hearing, tempo/timing and reading skills
This may consist of:

  • repeating by ear a sung or played line
  • filling in (playing solo) of a harmonic progression of given chord symbols
  • playing of a written melody a prima vista

The committee supplements the examination with some exercises which must show the candidate's skills which have not been sufficiently disclosed up till then.

3. Assessment
The possibilities to follow a principal subject study will be discussed by the committee. Important issues for the assessment are:

  1. musicality, hearing and melodic understanding
  2. feeling for rhythm and tempo
  3. affinity with jazz or derived forms is supposed to be present
  4. harmonic understanding, reading chords
  5. technique and tone quality
  6. sight reading

The candidate must submit via the application form three links (YouTube, Soundlink etc). to audio or video recordings of their performances. On the basis of these materials, the committee will assess the candidate's level. If the candidate's level meets the requirements for the master's degree programme, the candidate may be invited to do a practical audition. In this audition, the candidate will play three songs, including:

  • one original composition
  • one jazz standard

Originality and a high level of improvising are required.

Candidates may bring their own accompaniment. It is also possible to make use of a conservatory trio; if you wish to do so, please state this on the application form.


Martijn Sohier coordinator, technique, methodology
Bert Boeren 
Ilja Reijngoud
Martin van den Berg bass trombone
Nils Wogram regular guest teacher(Artist in Residence)