In which numbers plays Vai 7-string?

[TroelsRasmussen]

In which numbers plays Vai 7-string?

[Martyr Machine]

...what? Do you mean in which of his songs does he use a seven string?
Off the top of my head, I can remember "Under it All" and "For the love of God"

[jemaholic]

7-string is sprinkled throughout Passion & Warfare.

[peromucho7]

Whitesnake's ''Sleep of tounqe'' was played and recorded with just Universe ( older without AANJ ) ( Steve said so in Ibanez catalog 93 or 94 )

[Petie]

Here are some I can remember off the top of my head

Passion & Warfare: While he used it a lot, he didn't use the low B string on every song.
Answers (no low B)
The Riddle
For The Love Of God
The Audience Is Listening
I Would Love To
Sisters (no low B)

Sex & Religion:
Rhythm track to "Touching Tongues"

Alien Love Secrets:
Ya Yo Gakk

Fire Garden (Not sure, need to check tab book):
Damn You
Genocide

The Ultra Zone
Oooo (can also be played on a low tuned 6 string)

Real Illusions: Reflections:
Under It All

[TroelsRasmussen]

Thanks!!