That would be the only case I wouldn't consider them musicians. Since basically, they're just a stereo operator. If they're actually scratching and adding samples, I would say it qualifies as a musician.
Yeah. That's what I went into in the later half of that post I made.

I still believe that it takes some skill to operate turntables and mix. You not only have to know what meshes together well, but also feel the crowd and tune to them. I've heard a lot of really terrible club DJs who don't do this.
I think DJ's and electronic music composers aren't really musicians at all. I have had discussions with some before, and they argue about having expertise with software, mixing, and whatever they do as thier "live" act.
Part of this problem seems to be that people aren't defining what a DJ exactly does, or which DJ we're talking about. Some believe that all they do is spin, others talk about dudes who scratch, and others talk about electronic artists who mesh together samples.
can a dj play a c# major scale with his turntable.
can 95% of dj's read standard notation
a turntabilist is a percussionist at best.
So a drummer is not a musician? What about a clave player? Djembe? They can't play a C# major scale. And many jazz musicians couldn't read standard notation.
A lot of different things: the chords the guitarist chooses to play the progression and how armonizes those chords, the sound, the "color", and the style he plays it. And to do it you have to know at least which notes to play for that chord, tecnique to play it with groove, and so on... If he plays with a swing feeling or with a latin feeling, or whatever rhythmic feel he plays it...
You know that a skilled DJ can manipulate these things as well, right? It's just not in the same way, like how a pianist will obviously do things differently than a guitarist.
But the main point, for me, is that a DJ - unless he/she composes and creates himself the music that he manipulates (i use "he" but i intend females too

) - needs pre-existent recorded music to do it.
So anybody who plays a piece of pre-existing music from notation is not a musician? Composing does not determine whether one is a musician. Anybody will agree with that, at least.
It's a bit like cutting up famous paintings and putting different ones together with tape and acting like the real artistry was a result of you just you just putting together what you thought looked good. Sure maybe you had an eye for what worked good together, but you didn't actually create anything.
So photographers are not artists, too? What about the avante garde era of art? Man Ray? If you're going to get into art and painting it's a whole other can of worms. They have debates about the validity of certain artists just like we're having right now about the validity of musicians. Since I got my BA in art history, it's a topic I like to avoid talking about as much as possible.
Sorry I'm already repeating what others have said, but I'm going through the thread chronologically. I'm totally in the same camp as Bruce, tZer, AN0INTD, JKT, etc. And composition isn't necessarily a mark of a musician. Considering the naysayers' frame of logic anybody who plays a piece that's already been written is not a musician. Cover bands are not full of musicians. Precussionists are not musicians.
It is in some way like rap. It takes talent, but is it singing?
This is OT, but most rap isn't singing in the natural sense because by definition (according to Merriam Webster):
1 a: to produce musical tones by means of the voice b: to utter words in musical tones and with musical inflections and modulations
They don't manipulate tone or pitch nor do they modulate a lot of the time. If you've ever seen a rap song notated (rare, but it does happen), then you'll see one note most of the time. But if you're talking about cats like Bone Thugz, of course they're singing.