All chord-samples belong in this directory. There must be all 6 chord
types available for each chord group.

The chord-basename can be anything (C in this directory for example).
It must be followed by a "-" and

Maj
Maj4
Maj6
Min
Min4
Min6

If you don't have the appropriate "4" and "6" chords (which can be created
using Protracker or SampleCreator), you can just copy the "Maj" sample to
the "Maj4" and "Maj6", same with "Min".

Better don't use string chords.