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Hello. This is my review

I’m tired. Mg phone’s low on power, and I only have a few things to say. This means that my review will be 1000 words too long.

Bad
I’ll start with grammar

Steel sculpted buggy’s, the grandparents of cars, rolled along with horns honking;

the path less crowded than it was I daylight but twice as lively.

tentatively into the 20th century, as yet unscarred by the Great War to come.

but this played no hindrance to the smooth dance of notes.

It was a bright day in a new bright year in the brightening city of New York.

Great story, here I come to review!
I know you asked for criticism, but I apologise if any of my remarks offend you in any way. I'm only attempting to help you.
Here I go.
The beginning is too sudden. You mentioned Cara, then right away started on what she was doing at the moment. Maybe a little more description in the beginning would have been nice.

Steel sculpted buggy’s, the grandparents of cars, rolled along with horns honking; middle-aged men sat behind their wheels. All grinning like the monopoly man as their vehicles parted the crowds on the street, tipping bowler hats to silk swathed ladies as they passed.

They moved in a stream, an intersecting system of paths over the cobbled road

Cara paused at the street curb, her next job wasn’t until that night.

“It’s a catchy tune,” said Cara, her cheeks had brightened whilst she sang.

“The name’s Harvey, Harvey Nodds.” the man held out a hand, slim but firm from playing the violin.

catching sight of his violin case and his grinning reply.

Twilight soon descended over the city, like a blanket unfurling over the world with a tapestry of stars pricked out on the heavy velvet.

the path less crowded than it was I daylight but twice as lively.

She rose the barrel to angle down, gloom shrouding her actions, but at a violins song, sound stopped working.

Cara closed her eyes to the violins harmonies. Suppressing a rising choke, she released her own resounding ring, soon followed by a blood splatted panic.

Hi! The first thing is that I loved your story. It's really well written and your description is amazing. It really made me feel part of the story. The only negative critics would be some clarification. For example where exactly is the action taking place? I found it really confusing that you first tell us: "the nights were long in New York City" so we understand the action is happening in the US. But after your sating "Harvey let the UK hit rollout across the stage", so it's happening in England? And in the end, you say"1539, Germany". Where is the action taking place? Maybe you could explain this to me? I think this would help to have a better picture of the story. You could also tell us more about there outfits. This would also help picture the character better. Also, I found it a little strange that you have so many little paragraphs. It really is unimportant but maybe you could have a look.
I really liked your short story and there isn't any really important negative critic I can make. I enjoyed reading it and I hope you enjoyed reading my review and it helped you.