Music for setting up speakers

Headhead, that 1st Hot Tuna album is great. Always one of my favorites. A system  set up right puts you there in the club. 

This https://www.youtube.com/watch?v=zhneUPOv1JE

     Whenever speaker set-up, imaging or soundstage are mentioned, I like to remind people about these resources: The following provide tests, with which one may determine whether their system actually images, or reproduces a soundstage, as recorded.  

      Of course: no one is going to be listening to tests, etc.  BUT: it IS good to use these, to eliminate any variables, when making initial set-ups.
     
      ie: On the Chesky sampler/test CD; David explains in detail, his position on the stage and distance from the mics, as he strikes a tambourine(Depth Test).

      The LEDR test tells what to expect, if your system performs well, before each segment.

       The Chesky CD contains a number of tests, in addition to the LEDR.

        (https://www.audiocheck.net/audiotests_ledr.php)

      and: (https://www.amazon.com/Chesky-Records-Sampler-Audiophile-Compact/dp/B000003GF3)  

      A Stereophile article, that explains the LEDR test:                                             http://www.stereophile.com/features/772/

pink noise and a mic

I listened to some solo violin and cello, some folky vocals, some Led Zepp just because :0)

maybe music where instruments are easily located ect

I think you are on the right track listening to solo acoustic instruments. I would add some chamber music to your playlist, so you can get a good picture of how they are reproducing instruments in relation to each other, in an actual acoustic space.

When I am first setting up a system, I try to avoid recordings with a lot of studio production methods, since they tend to disguise how an instrument sounds playing without effects, in a real acoustic space. 

This will also get you a natural sounding soundstage and image, without studio panning, digital delays, phase changes, etc.