This article explores and contextualizes the Macnaghten–Lemare concerts, a London concert series run for six seasons in the 1930s by the violinist Anne Macnaghten and the conductor Iris Lemare, with the help of the composer Elisabeth Lutyens and others. Notable for their performances of the work of emerging British composers such as Benjamin Britten and Elizabeth Maconchy, the concerts are also remarkable for the central role played by women – as performers, organizers and composers – and for the space they provided for the unconventional and ignored. Drawing on interviews with Macnaghten and Lemare as well as extensive archival research, the article provides details of the 20 concerts and argues for their hitherto overlooked importance in understanding the British concert life of this decade.