The main point of all this is that if the premises is licensed for less than 200 people, and that license incudes the provision of music entertainment, and that entertainment is purely unamplified, and it's between 8am and midnight, then the licensing body cannot impose any conditions FULL STOP.
John Barden

john - I think they can impose conditions and in my LA's case – they have. But there does remain is some doubt in this local example - on the size of the premises or if a capacity has been imposed.

But assuming an imposed limit of less than 200 in this case - I think The question is - if S177 suspends these conditions or if they have any 'effect'. This is not quite the same thing - as saying the LA is not able to impose any conditions because of S177.

b) are not being used for the provision of any other description of regulated entertainment,
any licensing authority imposed condition of the premises licence which relates to the provision of the music entertainment does not have effect, in relation to the provision of that entertainment, unless it falls within subsection (6).