In music, an octave (Latin: octavus: eighth) or perfect octave is the interval between one musical pitch and another with half or double its frequency. It is defined by ANSI as the unit of frequency level when the base of the logarithm is two. The octave relationship is a natural phenomenon that has been referred to as the "basic miracle of music", the use of which is "common in most musical systems".
The most important musical scales are typically written using eight notes, and the interval between the first and last notes is an octave. For example, the C Major scale is typically written C D E F G A B C, the initial and final Cs being an octave apart. Two notes separated by an octave have the same letter name and are of the same pitch class.
Three commonly cited examples of melodies featuring the perfect octave as their opening interval are "Singin' in the Rain", "Somewhere Over the Rainbow", and "Stranger on the Shore".
The interval between the first and second harmonics of the harmonic series is an octave.
inspector gadget
go mr gadget go thats the name
spell it out till it don't sound the same
its the g-a-d to the g-e-t
gadget on the mic wanna rock with me
yo stop that guy with a claw for a hand
go mr gadget with the master plan
inspect the scene of the crime
don't make me
but i'll hit ya with a go gadget rhyme
when theres a problem in your town go gadget now
if your in trouble there's no doubt he'll work it out
inspector gadget oh
if ya do the crime you're gonna do the time
inspector gadget oh
when he's on the case ya better hide your face
inspector gadget oh
the city's only saviour
inspector gadget oh
he's number one
now who's that man with a master plan
to bring peace to the land ya gotta understand
inspector g's the name and law's the game
he's gotta track down claw cos the guys insane
and so he works downtown as a...
looks kinda funny acts like the clown
but he be gettin criminals lock them in bars
go gadget copter jet propeller cars
he jumps up and out of the seat
and bounces higher with the springs in his feet
you know he'll always be around land or the sky
and you know inspector gadget is a hell of a guy c'mon
when theres a problem in your town go gadget now
if your in trouble there's no doubt he'll work it out
inspector gadget oh
he's gotta badge on his chest and you know he's the best
inspector gadget oh
anywhere that ya hide, gadget will find ya
inspector gadget oh
if a city's only saviour
inspector gadget oh
he's nummber one
when there's a problem in your town go gadget now
if your in trouble there's no doubt he'll work it out
inspector gadget oh
if ya do the crime you're gonna do the time
inspector gadget oh
when he's on the case ya better hide your face
inspector gadget oh
if a city's gonna be safe
inspector gadget oh
he's nummber one
inspector gadget oh
he's gotta badge on his chest and you know hes the best
inspector gadget oh
anywhere that ya hide gadget will find ya
inspector gadget oh
if a city's gonna be safe
inspector gadget oh
he's number one