From the Album The Mare Machine, The Mane 6

Cut from a review:
"The Mane 6 strikingly creates a sound so antiseptic that germs would die there. What’s more, the band has never been this conceptually stubborn — even the dreaminess of “Mare Machine” is kept under close surveillance by the insistent percussion — but, happily and ironically, the music gains in power and force because of it."

The lyrics would go like this:
[Verse]
Mare Machine
Pseudo-pony being
Mare Machine
Superpony being

[Chorus]
The mare machine, machine
Machine, machine, machine
Machine, machine, machine (machine)
The mare machine, machine
Machine, machine, machine
Machine, machine, machine (machine)

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Ok, so the mane 6 got the song from Kraftwerk and it was a cover played by Dandelion and/or former Mane 6 band  member Karl Bertos.

https://karlbertos.bandcamp.com

Picture, UtterlyLudicrous

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Download : https://pony.fm/tracks/45924-the-mare-machine