Who composed the song “Sweet Bird” by Herbie Hancock?

The song “Sweet Bird” by Herbie Hancock was composed by Joni Mitchell.

Herbie Hancock

Sweet Bird

Joni Mitchell

Out on some borderline
Some mark of inbetween
I lay down golden-in time
And woke up vanishing

Sweet bird you are
Briefer than a falling star
All these vain promises on beauty jars
Somewhere with your wings on time
You must be laughing
Behind our eyes
Calendars of our lives
Circled with compromise
Sweet bird of time and change
You must be laughing
Up on your feathers laughing

Golden in time
Cities under the sand
Power, ideals and beauty
Fading in everyone's hand

Give me some time
I feel like I'm losing mine
Out here on this horizon line
With the earth spinning
And the sky forever rushing
No one knows
They can never get that close
Guesses at most
Guesses based on what each set of time and change is touching
Guesses based on what each set of time and change is touching
Guesses based on what each set of time and change is touching