-The default chord name layout is a system for Jazz music, proposed
-by Klaus Ignatzek (see @ref{Literature list}). There are also two
-other chord name schemes implemented: an alternate Jazz chord
-notation, and a systematic scheme called Banter chords. The
-alternate Jazz notation is also shown on the chart in @ref{Chord
+The basic chord name layout is a system for Jazz music, proposed
+by Klaus Ignatzek (see @ref{Literature list}). The chord naming
+system can be modified as described below. An alternate jazz
+chord system has been developed using these modifications.
+The Ignatzek and alternate
+Jazz notation are shown on the chart in @ref{Chord