gregorian chant subgroup of chant, 9 assertions
CapableOf 5
spread to scandinavia 0.68
undergo musicological a… 0.62
develop around 750 0.38
conform to mode 0.38
spread to iceland 0.38
HasProperty 1
obligatory 0.16
ReceivesAction 3
edited 0.38
reinforced by the legen… 0.25
taken to be authentic, … 0.25