Call it half a song

Call it half a song, change the lyrics and play on street corners…

Here’s some inspiration,
For those with no education,
Here’s a new creation.

Here’s a soft salvation,
For those who look for liberation,
Here’s a foundation.

Call it half a song,
Change all the words and sing along,
Rearrange the chords,
And it might win some awards.
So please do it the honours,
Go and sing on street corners.

Whoever thought a poem like this made sense?