The Sons of Ammon updated the "Apostle" Scripture Mastery Songs
from the D&C to reflect the changes in the 1st Presidency and 12 Apostles
. They also submitted new tracks that only contain the music (with no words) for all of the Old Testament songs so seminary students can practice singing the Scripture Mastery Scriptures on their own. These files, in wma format, are called minus tracks which you can download individually or in one zip file. The second song, for Moses 7:18, doesn't have it's own minus track because the original song was sung a capella and, as one of the Sons of Ammon said to me, "if there were it would be silent."