The maximum age in the Bundesjazzorchester is 24. It is possible to join the ensemble up to the age of 22. Joining the orchestra requires passing through an audition process. The orchestra is composed of all big band instruments and a vocal ensemble. Once accepted, musicians commit to a two-year membership period, made up of four programme cycles centred around bi-annual rehearsal and workshop weeks. During these weeks, musicians participate in sectional and tutti rehearsals, as well as individual and group tuition. The weeks are driven by a musical programme decided by the musical director. In addition, the musicians can participate in informative workshops. The rehearsal and workshop weeks carry a 200€ participation fee.