+LY_DEFINE (ly_book_add_score_x, "ly:book-add-score!",
+ 2, 0, 0, (SCM book_smob, SCM score),
+ "Add @var{score} to @var{book-smob} score list.")
+{
+ LY_ASSERT_SMOB (Book, book_smob, 1);
+ Book *book = unsmob<Book> (book_smob);
+ book->add_score (score);
+ return SCM_UNSPECIFIED;
+}
+
+LY_DEFINE (ly_book_add_bookpart_x, "ly:book-add-bookpart!",
+ 2, 0, 0, (SCM book_smob, SCM book_part),
+ "Add @var{book-part} to @var{book-smob} book part list.")
+{
+ LY_ASSERT_SMOB (Book, book_smob, 1);
+ Book *book = unsmob<Book> (book_smob);
+ book->add_bookpart (book_part);
+ return SCM_UNSPECIFIED;
+}
+
+LY_DEFINE (ly_book_book_parts, "ly:book-book-parts",
+ 1, 0, 0, (SCM book),
+ "Return book parts in @var{book}.")
+{
+ LY_ASSERT_SMOB (Book, book, 1);
+ Book *b = unsmob<Book> (book);
+ return b->bookparts_;
+}
+
+LY_DEFINE (ly_book_paper, "ly:book-paper",
+ 1, 0, 0, (SCM book),
+ "Return paper in @var{book}.")
+{
+ LY_ASSERT_SMOB (Book, book, 1);
+ Book *b = unsmob<Book> (book);
+ return b->paper_ ? b->paper_->self_scm () : SCM_BOOL_F;
+}
+
+LY_DEFINE (ly_book_header, "ly:book-header",
+ 1, 0, 0, (SCM book),
+ "Return header in @var{book}.")
+{
+ LY_ASSERT_SMOB (Book, book, 1);
+ Book *b = unsmob<Book> (book);
+ return ly_is_module (b->header_) ? b->header_ : SCM_BOOL_F;
+}
+
+LY_DEFINE (ly_book_set_header_x, "ly:book-set-header!",
+ 2, 0, 0, (SCM book, SCM module),
+ "Set the book header.")
+{
+ LY_ASSERT_SMOB (Book, book, 1);
+ SCM_ASSERT_TYPE (ly_is_module (module), module, SCM_ARG2, __FUNCTION__,
+ "module");
+
+ Book *b = unsmob<Book> (book);
+ b->header_ = (module);
+ return SCM_UNSPECIFIED;
+}
+
+LY_DEFINE (ly_book_scores, "ly:book-scores",
+ 1, 0, 0, (SCM book),
+ "Return scores in @var{book}.")
+{
+ LY_ASSERT_SMOB (Book, book, 1);
+ Book *b = unsmob<Book> (book);
+ return b->scores_;
+}
+
+
+const char * const Book::type_p_name_ = "ly:book?";