Music also takes an important place on the Lorentz Casimir Lyceum. There are a number of schoolbands with pupils from the substructure or superstructure. In addition, there is a school orchestra with students from all layers, who rehearse under the direction of a professional conductor. The music room and the practice studios are fully equipped to make music together, even outside of class time. The musical students perform during the open day, at the Orion Music Awards, the Artistic Interlyceale and at the graduations.