In this exercise we make the whole thing a little bit harder. Instead of playing the root note of the interval, singing that, and then singing the target pitch, we will now sing the target pitch only. For example, you are practicing your major sixths. You then play the note C, and then do NOT sing that C, but rather try to listen to the C, imagine the interval of a major 6th and what it sounds like, the “character” of that interval, and then sing the target pitch A right off the bat. Then also sing downwards a major 6th. What is a major 6th down from C? Come on, you know it =) That’s right, Eb!
So, not much different from exercise 1 right? You still need to know all of your intervals, both theoretical and aural.