Grateful Dead

I can't stay much longer, melinda, the sun is getting high.
I can't help you with your troubles, if you won't help with mine.
I gotta get down, i gotta get down, i gotta get down to the mine.
You keep me up just one more night, i can't sleep here no more.
Little ben clock says quarter to eight; you kept me up 'till four.
I gotta get down, i gotta get down, or i can't work there no more.
A lotta poor man make a five dollar bill, keep him happy all the time.
Some other fella's makin' nothin' at all and you can hear him cry,
"can i go, buddy, can i go down take your shift at the mine?"