Database of all occurring and non-occurring possible events in the final corpus.

Columns:
song = song being evaluated
comp = composer
frame = metrical position being evaluated
root = chord root being evaluated
prert = root of preceding occurring chord ('start' if first chord)
prequal = chord quality of preceding occurring chord
folrt = root of following occurring chord ('end' if last chord)
folqual = chord quality of following occurring chord
premove = root motion from preceding chord in descending semitones
folmove = root motion to following chord in descending semitones
occ = logical coding whether or not the chord in question occurs in the song
attach = logical indicating whether the chord can be attached into the tree structure for occurring chords, given the CFG described in the paper
embed = ordinal depth of embedding, in number of edges to the nearest occurring chord in the harmonic skeleton
LDattach = logical indicating whether the attachment is to a non-adjacent chord
locatt = logical indicating whether the attachment is to an adjacent chord