A chord
A major
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The A chord has the intervals I, III, V with notes A, C#, E
Matching Scales: A Major A Major Pentatonic A Mixolydian C# Minor C# Harmonic Minor C# Phrygian E Major E Mixolydian E Dorian
The major chord is one of the basic triads and can be found in every genre of music. It is characteristically happy and often serves as a basis for forming more complex chords.