Chord progression song Scale relationship

Here is a harmony chart indicating scales that will sound good with the chords A,D,E. You can use the JGuitar Harmonizer to find scales that sound good with chords or vice versa.

If you see the chords A D A E D A, then the song is almost definitely in the key of A Major. The A Major scale includes the notes A, B, C#, D, E, F#, and G#. (A scale is just a series of notes, arranged in order.) The chords of the A Major scale are A Major (or just A), B Minor (Bm for short), C#m, D, E, F#m, and G#dim. (A simplified explanation is this: there are these 7 chords in the key of A Major.) Notice that the 1st, 4th, and 5th chords are identified as Major chords. The 2nd, 3rd, and 6th chords are Minor chords. (The 7th chord is Diminished, which is advanced for me, so you'll have to get another brother to explain.) Stay with me. When you play the 1st, 4th, or 5th degree you are playing a Major chord. Those chords must include (when you strum) the 1st, 3rd, and 5th notes of the Major chord, taken from the A Major scale. EXAMPLES related to the song you mentioned: For A Major, you must strum a combination of strings (usually 6, 5, or 4 strings) that include at least one A (the root note of the chord, in this case A Major is the I chord, or the "Tonic."), one C# (the third note from A, including A), and one E (the fifth note from A, including A). A Major is spelled A-C#-E. For D Major, you must strum a combination of strings (usually the high 4 strings, the thinnest 4 strings) that include at least one D (usually the open D string--this is the root note of the chord, and the 4th note of the A Major scale. That's why D Major is called the IV or the 4-chord of the A Major scale), plus one F# (the third note from D, including D), and one A (the fifth note from D, including D). So, D Major is spelled D-F#-A. For the E Major in that song, you must strum a combination of strings (usually 6 for E Major) that include at least one E (the root note of the chord, very often with E Major, that would be the fat 6th string--the open E string), plus one G# (the third note from E, including E), and one B (the fifth note from E, including E). To spell E Major use E-G#-B. I am clearly trying to do too much hear, content that fills books! But let me finish with this: If your song only includes those 3 chords: A, D, and E, then you're golden. Learn those 3 chords, and you can play that song after practicing. The chord progression of the song you offered is I-IV-I-V-IV-I (or 1-4-1-5-4-1). Learning the numbers will help you remember and describe the song to other guitarists. Hear are my recommended voicings for the A, D, and E Major chords. These are basic and easy to learn. A: XO222O; D: XXO232; and E: O221OO. (BTW: When you play those chords, just go slow and try to take 4 beats for each and it will flow. I think that chord progression ends with an E and then an A, I checked it out on my guitar. A D A E D A E A. Peace.