Musicians find different types and levels of difficulties when dealing with Secondary Dominants. Playing a harmonic instrument (keyboard, guitar) may help in becoming highly familiar with them. For the purpose of this training, we are interpreting "secondary dominants" as Dominant type of chords (M-m-m) leading to a triad other than I or i of the home key. The exercises below are designed to reveal more steps involved in the understanding of these chords. Consciously practicing the exercises following the 4 steps requires that you write them down in music notation on a manuscript paper and also to play (and sing whenever possible) each step on your instrument. This slow process will in turn become almost instinctual, fast, and will help you to hear in more detail the chromatic nuances in tonal music. Eventually, responding to each question will apparently involve only the step 4 then you know you are fluent in this topic.