Altering page numbers

[David Sumbler]

Judging from all the searching I have done I think that the answer to
the following question is "no": is there a way to override automatic
page-numbering after the first page?

I have several pages of introductory and performance notes in the score
I am currently working on, followed by about 150 pages of score.  I
should like to have the pages before the actual score numbered in lower
case Roman numerals, followed by the score pages numbered in Arabic
numerals starting at 1.  But I cannot find any way to do this.

At the moment it seems as if I have 2 alternatives: I can either leave
the introductory pages unnumbered and set first-page-number = #-7 (or
whatever value would give me page 1 on the first page of actual score);
or I can split the book into 2 separate files, one for the cover and
introduction and the other for the score itself.

Is there any way of achieving the result I want whilst keeping the
whole book in one actual \book block and hence one output file?

David