Illustration Credit : http://www.dreamstime.com/trovotti.info
This is the work of illustrator and photographer, Trottola.
I don’t know much about vectors or illustrations but love looking at them. When I saw this picture, I see so much potential use of it. What I see is unity and diversity. No matter where we are, what we believe, whatever the cultural difference, we can find a common ground in music. Hey, music makes the world goes round.
This can be used as a theme or logo for a musical programme, choir, concert, school play, etc. It is pretty cute too 
Good work, Trottola.
There are a few links I came across while doing research. If you have the talent to draw or just want to expand beyond photography, give them a go. These are very useful and interesting tutorials.
Links
How to make illustrations even if you can’t draw
Vector Illustration: 60+ Illustrator Tutorials, Tips and Best Practices
How to make custom swooshes swirls and curls
How To Create an Intricate Vector Heart Illustration
Illustration Friday
Inkscape courtesy of Alvera
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