In my opinion, not every composition out of musical sounds can be considered as Music.
In order to be music, the composition in question must be tonal , melodic , and to be music of classical style – hearty and serious in addition to the above.
Music proper can not occur without melody .
It's not enough to express emotions in sounds.
With notes (and musical sounds) one should sing and dance. Well, or narrate. One should not, for instance, draw or paint with them – the right things to do that with are brushes or pencils. When a composer draws with sounds, he does not deal with and write music properly. Unfortunately, starting with the 20th century, quite a lot of authors stuck out on this wrong way.
I can not agree to confining music in any way!
Everyone has his own, individual vision. Those, who see visual images, pictures, they "draw" or "paint". For example, Rachmaninov wrote his Etudes-tableaux, expressing quite concrete images. Is not it Music ?!
Others can not see so, but can sing and dance or present music in yet other ways. All depends on one's own individual, inner vision of music. So what one person sees as a visual image, a picture, others can present as melody (a dance, a song).
Music is universal as a whole and individual in its parts.
Reply to the opponent :
Oh, yes. Different people can have different visions and opinions and see music in their own individual ways. A lot depends on one's own inner, individual sense and understanding.
But the real, objective, right and true state of things does not depend on it and will not change.
We also know – Man is right to error . People very differently in how easily they get misled and how gross and frequent mistakes they make.
Different creative spheres belong to and are governed by different Muses, not by one, universal, as you wrote. Each Muse has her own ways and tools. If a composer for some reason (he can not, he will not, has not got taste) avoids melodic work and with musical sounds starts to do what is to be done with paints, brushes and pencils or follows another wrong course – say, that of 'theater of sounds', then it means he sits down between two chairs (which stand apart from one another).
Try to sit between 2 chairs! – Where shall you find yourself? Anyway, not in the sphere of Music. Nor do you manage to get to the sphere of Graphic Arts. You just fall onto the floor.
Not a few authors found themselves where they did not intend to be.
Thus, individuality and individual search are welcome till one has the right measure in him and the feeling of it.
As far as the Rachmaninov's Etudes-tableaux are concerned –
you fail to read carefully what I've written. Rachmaninov is a well known melodist and these etudes are really musical compositions. There is quite a lot of melodic content in them, deviations are scarce. The very name "… -tableaux" misled you.
Yet another thought to the point:
Music should always carry Beauty, even when it tells us about something very sad and tragic. In this respect music is comparable to belles-lettres, fiction, in contrast to non-fictional, documentary chronicle. Some authors lost the right path and sense and wrote chronicles.