Thanks, jackdaw.
I've been sitting here trying to parse it, but cannot....only that is means 'further monitoring'
Do you have any ideas?
(I've always been much more of a guesser than a parser)
The phrase follow-up record/single used to be fairly common. I suppose it could have referred to he follow up of any record but tended to refer to the record that followed an artist's first hit or particularly well known song