It's strange to think of Miles Davis opening a concert for anyone in the pop world, never mind someone as incongruous as singer-songwriter Laura Nyro (who was a little jazzy), but that's what happened for four nights in June 1970 at the Fillmore East in New York—immortalized later that year on the two-record set "Miles Davis at Fillmore."

Those four LP sides represented just a fraction of what Davis performed at those shows: A new four-CD box, "Miles at the Fillmore—Miles Davis 1970: The Bootleg Series Vol. 3"...