Jefferson Airplane: Open Up, Tune In, Turn On

THE SNARL of an engine splits the stillness. Out of the half-light, the projected silhouette of a Piper Cub glides ghostlike across a side wall. Suddenly, sound track and silhouette become a screaming, whooshing jet that dives at the stage and disintegrates with a shattering roar in the midst of six musicians. The drummer roars back with a thumping beat. The guitarists twang away lustily. And, momentum building, voices wailing and all systems go-go, the Jefferson Airplane blasts off.