In August we found out about the tension and resolution factor of the V7 chord (G7 in the key of C) to the I chord (C) and what happens when you take out the two notes that are creating all the tension in the V7 chord: you’re left with a very friendly sounding Major Pentatonic Scale.
The C Major Pentatonic Scale consists of five tones, C-D-E-G-A. In the audio clip below I’ve added the octave C.
Notice the two notes that were left out of the Major Pentatonic Scale, the F and the B. Play those two together. There’s the tension of the G7 chord. There are many songs that use the notes of the Major Pentatonic Scale for their melody. Take the Tennessee Waltz for example. Another that comes to mind is Buttons and Bows. If you know of some popular Pentatonic melodies, please post them in the comments section.