Venus: (Alden x New York 46000) From the University of Arkansas.
Venus is a blue/black, seedless that has unusually large berries for a seedless grape.
It's flavor is a combination of muscat and labrusca.
In some years the seeds may be full-sized, but are usually soft and can be eaten with the grape. Rarely, there will be a few hard seeds. In cool climates the skin may be astringent, but the flavor is good enough that most people overlook that.
Venus ripens early/mid-season, about four weeks before Concord.
Venus can be spur pruned, but production and cluster size are slightly greater with cane training.
See bunchgrapes.com