The new international standard for music rehearsal rooms, ISO-23591, includes requirements for orchestra rehearsal rooms. While the playing and listening conditions for musicians have been studied and taken into consideration in research and design practice since Gade's early work in Podium Acoustics in the 1980s, the impact of room acoustics on the conductors working conditions are only rarely addressed in scientific papers. In preparation of a concert performance, conductors typically need to hear in considerable detail what is going on in the orchestra, no less during rehearsal than during the actual concert. While difficult to achieve, conductors would like the sound of the orchestra at the podium to be as similar as possible to that at the audience' ears. In this paper, simulated acoustics at the ears of a conductor at the podium in front of a symphony orchestra in various rehearsal rooms complying with ISO-23591 are compared with those in concert halls, some of them internationally well known. A questionnaire suggested by this author for a survey among conductors is presented, the purpose being to provide a basis for finding acoustic measures that can describe critical aspects from the conductors perspective.