Your website looks good, really. But there are some nuances here and there, that do not help a beginner, allow him to make a mistake instead. For example, there's no explicit info about a sample's max. duration. Secondly, I did not notice an "instrumental" option in the "languages" drop-down menu when filling info to upload. I would rather like to see this option being separated and more explicit by that... And would like to recommend you to try an interesting approach: "Suppose, that a user is drunk or sleepy". In my case I was sleepy, as much as I did not want it... Try to test it, and I believe, it will help users to avoid a risk of a mistake or misunderstanding. Thank you.