Please read the walkthrough and guide.

The file size limit for uploads is currently 150MB. However, the recommended file size for normal scans is still <20MB (this does not apply to manuscript scans); any file larger than that will show the file size in red to warn users. Please break up the file into smaller sections (movements, etc) if the file is overly large; tools for that purpose can be found on the PDF page. If you want to upload multiple files that exceed 150MB combined, please upload them separately.

If a file is public domain only in the United States (e.g. was published before 1923 but author died less than 50 years ago), please use this upload form instead.

File Name: Mandatory. As this will also be the filename on the server, please use an identifiable filename with composer and work!

File Description: Mandatory. A brief description of the file uploaded (ex. Complete Score. See IMSLP:Score submission guide/File Descriptions for details.).

Editor: The person who reviewed, revised or corrected the score. This is not always known, but usually the editor's name appears at the top of the first music page (e.g. edited by... or in French revue par... or éditée par..., herausgegeben von, etc.). This field can also contain the name of the modern typesetter provided it is not a new composition. Composers uploading their own works should leave this field empty as composers are normally assumed to have reviewed and corrected their own work. The English term "Editor" is not the same as the similar-looking words "editeur" (French), "editore" (Italian), whose English equivalent is closer to "Publisher". Arrangers and creators of new editions or typesets should include their own name here.

File/Image Type: Mandatory. Typesets and retypesets are files which are produced using methods other than scanning a published score (i.e. file created electronically from Finale, Sibelius, or any other music notation software). A "manuscript scan" is a scan of handwritten music.

Scanner/Typesetter: This is the place to mention the person who scanned/typesetted the score. This field is mandatory for typesets.

Scans: This field should include the name of the person who scanned the file, or the website where the file was legally obtained - not the name of the scanning machine used.
Typesets: Please put the name of the typesetter here, or the site where the file was legally obtained - not the name of the notation software used.
Composers, Arrangers and editors uploading their own work should use either "composer", "arranger" or "editor" in this field.

Publisher Information: Very important. You can usually find publisher information on the bottom of the first page of the score. The format for this field is as follows (leave the brackets out):

<Place>: <Publisher>, No. (or Ed.) <Publisher's catalog or edition number (if different from plate number)>, <Date>. Plate <Plate number, with prefix and/or suffix>.

For help identifying the publisher, see this page. For entering special cases, see also this page. Composers, arrangers and editors uploading their own works should list themselves as "publisher", since making a work available at IMSLP meets the definition of "publication" under most copyright statutes.

Copyright: Mandatory. A detailed summary of the Creative Commons and Performance Restricted licenses can be found here.

Misc notes: In this field, notes about the quality of the score are frequently added. E.g. low resolution, grayscale, 300 dpi. Generally, high quality is reserved for files that are printable (>300dpi), and Low quality is for files that are not easily readable on screen (<75 dpi).