3.7 - Starts with an audibly nervous announcer informing the audience that tonight's performance will be recorded and that everyone should relax, which sets a fun on-edge tone to the evening. By the end of the second track, the singer has fallen off her chair and laughingly improvises a line, "I've fouled up this one really well..." She comes back with intense ferocity on the next track "Just One of Those Things." Vaughan's voice is a marvel. She improvises all the lyrics on "How High the Moon", with some solid scatting thrown in, which rounds out a frenetic, sometimes off-kilter, but assured performance.