Chords are a cornerstone of your guitar education. Many songs contain simple chords such as the C, D, G, and E minor chords. Strumming patterns and accents can help make chord progressions sound more dynamic and exciting. Many of your favorite songs contain just three or four simple chords. Better yet, you can learn to play a song in just minutes. Scales are a great way to train your ear and help you deconstruct the notes in songs and chords. Practicing finger exercises are a great way to build speed, strength, dexterity, and accuracy. Even guitar techniques that seem complicated—like the hammer-on and pull-off—can be easy to execute with a little practice.