Ideas in this flowchart

• How to Read an Interval Properly
• Determine the Size
• Start from Either Note
• Count Each Line and Space
• Determine the Quality
• Superimpose Major Scale
• Top Note in Scale
• Perfect or Major
• Intervals
• Unisons, 4ths, 5ths, Octaves
• 2nds, 3rds, 6ths, 7ths
• Matches Major Scale
• Use Interval Quality Chart
• Move Left or Right
• Perfect vs. Major/Minor
• Half Step Adjustments
• Minor, Diminished, Augmented
• Video Link in Comments