Graphic representation of complicated courses is often necessary to de
tect patterns that may be worth analysing. Examples are given to show
how musical notation or modifications of musical notation may be used
to register courses (or cross-sectional data) with more variables than
usual. One can register courses with known duration of components (an
d then also simultaneities); the time scale may be defined according t
o data. One can also register sequences without known duration of comp
onents. Finally the method can be modified so as to suit cross-section
al data. The method can be used to register a single case but also a g
roup of cases that are thus rendered comparable. It is a method of reg
istration, not of analysis but one that may help prepare a refined ana
lysis.