[GraemeJ]

I'm not a fan of the Chordpro format, but it is very popular with some players and I'm often presented with charts in that format.  You might like to look at a program called Chordsmith ( http://www.statistics101.net/chordsmith/ ) which I have found very useful.

The overview of Chordsmith is;

"ChordSmith is a program that transposes song sheets containing chords and lyrics from one key to another. It can also convert song sheet formats between ChordPro format and two-line format (chords above lyrics). You can find many free sources of song sheets in both formats on the Internet. In addition, ChordSmith will convert songs among different musical notation systems: Letter names (A through G), Nashville numbers (1 through 7), and solfège names (Do, Re, Mi...). Some sources of song sheets are listed at the end of this document. ChordSmith is accompanied by a modified open-source application, Chord, which can be launched by ChordSmith and among many other features, allows you to view and print high quality songs and songbooks. "