I thought I've uploaded the tracks when I launched the project. Why do it again?
Artwork and audio files required for launching your Crowdfunding or Make & Sell project are different from the files required for vinyl pressing.
To set up your project page, Qrates requires JPEG or PNG formats for artwork and mp3 or WAV formats for sample audios. For audio and artwork requirements for vinyl pressing, please take a look at Preparing data for vinyl pressing.
