@chubbyfingers Every key has 7 note and they are called intervals.
In the Key of C they are C D E F G A B and back to C. These intervals are numbered
1 2 3 4 5 6 7 every interval has a chord that goes with it. Without getting into to much
Theory these Chord in the Key of C are C Dm Em F G Am Bdim.
If you match each chord to it’s interval number you will see the C is 1 F is 4 and G is 5.
Making a 1 4 5 progression.
In the key of G the 1 4 5 intervals are G is 1 C is 4 and D is 5. making the G C and D chords
the 1 4 5
Every Key has 7 different notes. The note and chord change with the Key but the intervals
stay the same
Scales are the same they are made from the intervals of each key.
The Major pentatonic scale uses the intervals of 1 2 3 5 6 of the 7 intervals of the major scale.
The minor pentatonic scale uses the 1 b3 4 5 b7 of the major scale.
Don’t worry if you don’t understand any of this. You will learn all of this in the theory course
and as you work through Justin’s courses.