If you could bring back one great artist that has

Saw Janis a few times, very hit and miss. When she was on she was memorable and dazzling when she wasn't it wasn't worth the time.
Would like to bring Mozart into this. Another artist who was beginning to break into new venues or avenue of creation. What and how it might have turned out is as we all know to well is left unknown

Although not a performing artist, though he did play piano. Is Billy Strayhorn, who composed many of the hits for Duke Ellington. He died all to early at age 51 in 1967. We can only surmise the body of work that was yet to come. But nonetheless what he left behind is timeless.

Ian Curtis, Joy Division. i think we only saw the tip of the iceberg regarding Mr Curtis.

Jackie Wilson, Amy Winehouse.

John Lennon, because the (music) world needs him as much now as ever before.