Decide where to publish. You can publish your score on as many music websites as you like, but it makes sense to focus on ones that are frequented by people who are interested in hearing your style of music. As a score composure, look for sites that cater to classical music fans.
Meta-tag your score. Failing to meta-tag their uploads is a mistake many musicians makes when they publish their music online. When someone plays your score, you want their player to display the name of the score and the name of the composer. Some publishing sites will offer you meta-tagging options when you upload, or you can download meta-tagging software for free, so all of your scores are labeled on your system.
Upload your score. The uploading process will be different depending upon the site you choose to publish your music on, but each site will walk you through its process. As long as your score is meta-tagged, uploading should only take a few clicks.
Check your publishing job. Visit your profile page on each site and make sure your music score published correctly. If you encounter any problems, delete the file and re-upload. Persistent problems may require an email to the site's tech support team.