Distribution on iTunes or Amazon violates the Filmmusic.io Standard License, as you can NOT link the license as required. Links on covers in music shops are generally forbidden and there are usually no descriptive texts which would allow an extensive naming of the author or authors. A so-called "Featuring" is basically not allowed, because it violates the Filmmusic.io Standard License. So the answer is no. An extended license is required for each song, which eliminates the need for a copyright notice.