An .lvr file holds one hinário: its title and author, and every hino with its lyrics and repetition bars. It is how hinários travel between the O Livro app, the Hinário Editor and the printer.
LVR is short for Livro, as in O Livro da Floresta, the app the format was made for. The files end in .lvr, for example O-Cruzeiro.lvr.
An .lvr file is plain text, written as JSON, a format that computers read easily and people can still follow. It holds the title and author of the hinário, then its hinos in order: number, title, author and lyrics, stanza by stanza, with the repetition bars next to the lines.
There is no layout in it: no fonts, no page size, no pictures. Only the content. That keeps the files small enough to send by WhatsApp or email, and it lets every program show the same hinário in its own way.
.lvr file as an hinário of its own, also one that is not on NossaIrmandade.com. Whoever taps an .lvr file they received is asked to import it. Where a file manager doesn’t offer the app, share the file to O Livro from there..lvr file into print-ready pages, as an A6 booklet or on A4 sheets, which you print directly or save as a PDF for a print shop (create a paper hinário)..lvr. Check the result against the PDF. If that does not work well, for a scan for example, an AI chat can do the conversion; How to convert complex PDFs has the prompt to copy.
The Hinário Editor creates and edits .lvr files in the browser, on a computer or on a phone. Open a file or a PDF, correct a hino, set the repetition bars, add or reorder hinos, and save the .lvr again. Everything stays on your device - nothing is uploaded.
The format is open and documented in full in the LVR File Definition. Everyone is invited to use it for their own software: another app, a website, a print tool, a converter. The more programs read and write .lvr, the more easily hinários travel between them.