The dictation challenge is a daily challenge in which you listen to a short melody and chord progression and try to figure it out by ear. Each day there is a new challenge to try.
In the previous example, you only had to figure out the melody, but that's only half the story. Real songs also have chords, and the ability to identify what chord is playing is also an important part of having a good ear. Just as there are only 7 notes associated with the scale that songs use, there are also only 7 basic chords (these chords are usually written with Roman Numerals).
In the next example:
Each day we feature three challenges: beginner, intermediate and advanced.