This week on Trey’s Theory Corner, we delve right into the first in a series on individual intervals. I’ll be running them down by type (seconds, thirds, fourths, etc.) with a video for each. These intervals are the basis for all of harmony, so it’s important that we get these hammered in before we move on to chords and scales. Minor seconds and major seconds are the smallest of the intervals, and they invert to the largest intervals (sevenths). In this episode you can learn all about the different uses for seconds and what they sound like, as well as some songs to help you remember what they sound like later on (ear training anyone?).