Of course, in the first place, the composer must be stimulated to be both creative and original and in such a way that his music is worthy. The listener, on the other hand, must be convinced with the certainty of the evident qualities that it is outstanding. Inspired music is neither mechanical nor academic. Craftsmanship and Technique. A composer must know how to compose and achieve what he wants to write.
Composition is an occupation demanding the highest levels of skill.
The work must be competent, structurally logical, harmonically interesting and polished. A great piece will last and not wear out with repeated hearings and will continue to give the profound satisfaction its greatness proves and also continuing to reveal more of its detail. The work must make sense having direction, form and, of course, something definite and worthwhile to say. It must connect logically and not ramble. In other words it will not 'stop and start'.