Not everything in the Guru Granth Sahib sits inside a rag section, and the material at the two ends of the volume is a different kind of thing.
At the front stand the compositions that open the volume, beginning with the statement of the divine nature that is the tradition's foundational formula, followed by the long composition of Guru Nanak that is recited daily, and then two further groups of hymns drawn together for use in the evening and at night. These are gathered for recitation rather than filed by measure, and they stand before the rag arrangement begins.
At the back, after the last rag section closes, stands a miscellany: collections of couplets, compositions in praise of the Gurus by court poets, and a set of shorter pieces that do not belong to any measure. The volume ends with a verse listing of rags whose status is itself disputed within the tradition.
The distinction matters for anyone counting or citing. The thirty-one rag sections are the volume's primary structural division, and the atlas seeds them as its portions. The opening and closing material is real, substantial and heavily used, and it is not a rag section, so it is not represented here as one. Anyone building on this data should treat the absence of those compositions as a gap to be filled deliberately rather than as an omission by oversight.