So what does "Make it sing" really mean?

It's a good question.
Attempts to explain what is meant usually get bogged down after just a few paragraphs.
So how about explaining the idea using examples?
Great idea, but really telling, convincing examples can be hard to find.

Good news!
Here's one that I find convincing:

This sentence has five words. Here are five more words. Five-word sentences are fine. But several together become monotonous. Listen to what is happening. The writing is getting boring. The sound of it drones. It’s like a stuck record. The ear demands some variety.
Now listen. I vary the sentence length, and I create music. Music. The writing sings. It has a pleasant rhythm, a lilt, a harmony. I use short sentences. And I use sentences of medium length. And sometimes, when I am certain the reader is rested, I will engage him with a sentence of considerable length, a sentence that burns with energy and builds with all the impetus of a crescendo, the roll of the drums, the crash of the cymbals–sounds that say listen to this, it is important.
Source: GoodReads by Gary Provost
To hear it read with aplomb, try this.

It looks and reads better with a layout that I can't readily equal using Blogger:

For information on Gary Provost (1944-1995), see here.

Next step?

Now all I need is similarly convincing examples from the worlds of technical journalism and translated technical journalism.

Any suggestions?

This tweet by Anglocom is pertinent:

Anglocom
@anglais36 minutes agoMoreA good reminder for English translators of Latin languages: “An abstract noun neither smiles nor sings nor tells bedtime stories.” (Lewis Lapham)

Exchange with FT regarding the word 'minaret'

After reading Château de Chambord: overnighting at the Loire’s grandest folly, I submitted a comment saying something along the lines (when I tried to recover my original comment it was no longer accessible):

Nice article. In my opinion, however, one term stood out like a saw thumb. I refer to your use of 'minaret'.

In the version currently online, we find:

I sit at the window of my room in the Relais de Chambord, a new hotel beside the castle, watching the last of the sun reflect off its pale sandstone, its turrets and domes, towering walls and endless windows.

and the caption:

The castle’s turrets and domes seen from the hotel garden

 These previously read:

I sit at the window of my room in the Relais de Chambord, a new hotel beside the castle, watching the last of the sun reflect off its pale sandstone, its minarets and domes, towering walls and endless windows.

and the caption:

The castle’s minarets and domes seen from the hotel garden

I promptly received the following reply

Tom Robbins, FT Travel Editor said:

Thanks SteveDy. I think it's technically defensible since, according to the Oxford Dictionary, it means "a slender tower". But of course minaret usually relates to mosques, so yes "turret" would be better. I've now updated this piece to that effect. Thanks again

followed a couple of days later by

RuaridhNicoll said:

I defer to my esteemed editor here Steve, but just to explain my thinking, I wrote minaret intentionally because the roofscape was designed to resemble Constantinople. I should have probably said that though! best Ruaridh

Comments:

1. I find the Oxford Dictionary's definition of 'minaret' rather inadequate.
2. I like Ruaridh's use of 'roofscape'.
3. I was fascinated to discover that Ruaridh is a  Scottish name that means 'red king'.
4. I was even more fascinated to discover that the roofscape was designed to resemble Constantinople. What a wonderful titbit of trivia for a dinner party discussion on touring France.
5. Further proof that a terminologist's curiosity often leads to interesting exchanges.