The song is a remake of one of Vai's most famous pieces. The first part of the song is solo oboe (or maybe soprano sax) with harp accompaniment followed by a louder section where the guitar (played by Steve himself) takes over.
from Sound Theories (Epic 88697 107142) available on CD - Sound Theories Disc One (Epic)
Recommend your favorite
version of For The Love Of God (orchestral version)