they are all people.They wereFolk
C and W Clubs are called just that[youdont expect to find Pavarotti performing],so are Jazz Clubs[would BritneySpears be performing there No],Classical music concerts are not described as Reggae and neither would you find Reggae being performed there.
Acoustic music clubs,are just that,and anyone that plays acoustic music should be welcome.
when I open a tin of Baked Beans that is what I expect to find,I do not expect to find tinned Strawberries.