You could always ask EFDSS which is making more of a contribution to the society's financial viability,concert ticket sales or membership subscriptions. I can tell you it is membership.

My comparison with King's Place was not altogether fatuous. My point is that it is a fit-for-purpose venue with great facilities, and it is committed to promoting and presenting a range of folk musicians who are on tour as well as special events. One could argue that Cecil Sharp House is not particularly fit for purpose as a venue for presenting concerts, and maybe suggest that an organisation like EFDSS should not simply be replicating what lots of other venues in London already do, but instead focus a bit more on its national remit (as defined by the Arts Council as a condition of its grant) of being the national folk arts development organisation for the UK. Where is it's national education strategy, for example? How is it being delivered? I'm much more interested in that than in subsidising another London concert venue. I already do that through my taxes.