What is ChordPro?
The ChordPro site introduces this text format as follows:
In 1992 Martin Leclerc and Mario Dorion developed a simple text file format to write lead sheets, songs with lyrics and chords, and a tool to create neatly printed lead sheets out of these text files. The tool was called
chord, and the text files were called
chordfiles. It soon became a popular way to write lead sheets and many users and tools adopted this format for similar purposes. For still unknown reasons people started calling the files