Another difficulty appears with LATEX: internal LATEX macros handle the page size in a way which is not supposed to be changed within a given document. This means that text horizontal and vertical sizes are somewhat frozen so that one can hardly insert pieces of music of page size different from the size specified by the LaTeX style. Although a largemusic has been provided, the main drawback is an unpredictable behaviour of top and bottom printouts, especially page numberings.
If the whole of a document has wide pages, it can be haddled with the normalshapemediumseries a4wide style option, or any derivate of it.