The DB is one of those instruments (together with tuba, or trombone or timpani for example) very much gender skewed towards males. I may be generalizing here, but that's the impression I get from watching orchestras, playing with others etc. Apart from the physical strength/stamina required, are there any other reasons for this lack of participation? Are there any renown female DB orchestral players you can enlighten me on, please? Thanks for reading!