Displays chords functions of Major and minor progressions

• Guitars are usually tuned in fourths descending from the thickest to thinnest string.
• Tuned in fifths ascending from thinnest string to thickest string.
• Exception is on the 2nd and 3rd strings where it is a Major 3rd descending.

• Uppercase Roman numerals represent Major chords.
• Lowercase Roman numerals represent minor chords.
• White letters represent tonics.
• Red letters represent dominants.
• Blue Letters represent sub-dominants.

• Tonics have a resolution effect.
• Subdominants have an effect of moving away from a tonic.
• Dominants have a tense effect, moving towards a tonic to resolve.

• Only shows Major and minor keys.
• No symbols for augmented or diminished chords.
• Built for mobile.
  • Scrolling on desktop with a mouse is awkward.