Song enthusiasts are a form of technical analysis based on the idea that markets are geometric and circular. A song consists of a series of fan lines called song angles. These are charted on the price chart to indicate potential support and resistance levels. The resulting image is believed to help technical analysts predict price changes.
- WD Gan designed the fan for the song.
- The anthem consists of a series of fan bars. The user selects a starting point and the line is extended in the future.
- Gan thought the 45-degree angle was the most important, but Gan's fans also recorded angles of 82.5, 75, 71.25, 63.75, 26.25, 18.75, 15 and 7.5 degrees.
- The fan starts at a low or high point. As a result, the lines indicate areas of future support and resistance.