A dj.
An acoustic guitar.
This is called an acoustic guitar.
Guitar racks are only as reliable as they person who makes them. But if you want to go with generic ones, then go with the ones that make guitars themselves, like Fender.
If its a stringed instrument like a violin or guitar, they're called a luthier. Don't think there is any special word for trumpet maker or clarinet maker. Trumpet artisan might work.
Guitarist
What We call a person who makes sculpture
A "harmonicanist" is what a person who plays the harmonica is called.
A person who makes of
What We call a person who makes sculpture
The guitar makes sound when you pluck a string. The string vibrates down to the base of the guitar and travels in the hole, coming out as a sound we call a note.
A person who makes maps is a cartographer.
You might call a person who makes burgers a "hamburger cook," "cook," or "grill chef."
A person who makes cart wheels is a wheelwright.
We can call them as Boat Builders.
The person is a steel-worker.
Well Tommy Emmanual is an example. Even Elvis, he played the acoustic guitar too!