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A chordmap in the Chordmap Track of a segment is used in conjunction with markers in the Signpost Track to compose a chord progression in the Chord Track.
The selection of chords is based on the primary chords that are contained in the Signpost List of the chordmap. After suitable signpost chords are selected, they are inserted in the chord track. If the signposts are accompanied by chord paths, the chord paths are also inserted in the segment, so that a series of signposts and their chord paths are strung together in a long chord progression. If no chord paths can fit into a part of the segmentfor example, if all chord paths are too longthen only a signpost chord is selected and inserted.
Each signpost chord must be assigned to at least one signpost group. Markers in the signpost track specify which signpost group is used at each point in the segment.
The composition mechanism goes through the following basic steps to select chords:
If no suitable chord path is found, no chords are entered until the next marker is reached.
If there are multiple potential chord paths to choose from in step 2, one is chosen at random. However, the selection of chord paths is affected by other factors, such as the weight assigned to different connections, and the activity level. For more information, see the following topics:
The following topics show examples of the chord composition process: