The album contains fast and complex songs such as "Surfing with the Alien" and "Satch Boogie" in addition to the stranger-sounding "Crushing Day" and "Lords of Karma", in contrast to slower, melodic songs like "Always with Me, Always with You" and "Echo" which provide a change of pace. Also notable is "Midnight", which utilizes the technique of two-hand tapping at great speed, resulting in a Latin-American effect. There are also Nashville tuned guitars (on "Echo") and key changes (on "Always with Me, Always with You" and "Echo") to vary the album.
https://primanota.net/joe-satriani/crushing-day-chords.htm