An average low-level mix engineer can easily sell his/her mixing services for $ a song. If you were to buy only four multitracks to build your portfolio, and you only got one client out of it, you would still make a profit. About the Multitracks Why you’re going to love working with our songs. Check out the Prime Playback App for Gospel Multitracks! The easiest and simplest way to run your multitracks live! You can mute, solo, control volume, change keys, speed up, slow down and create c Views: 11K. Multitracks are a great way to build up your mix portfolio and resume, improve your mixing skills and quickly gain experience with mixing less familiar genres. Here are some great places to get multitracks for mixing, remixing, contests and more. Stay tuned as we continue to add new resources to this list.