Final answer:
The claim that Mozart perfected his compositions with time and repeated revisions is false. He was famously efficient in his compositions, often requiring minimal changes. This contrasts with other artists and composers who were known for their meticulousness and progressive, challenging works.
Step-by-step explanation:
The statement that Mozart would complete his compositions in advance to have time to make changes until they were perfect is false. Mozart was renowned for his ability to compose quickly, often with very few revisions. While some other composers might take more time to refine their works, Mozart's compositions were often created with such natural fluency that extensive changes were not necessary. This is not to say that he never revised his work, but the romantic idea of him laboring to achieve perfection through numerous revisions is not accurate.
Contrastingly, composers such as Berlioz, Strauss, and Wagner were known for pushing the boundaries and challenging audiences with their progressive music. Similarly, the artist Whistler incorporated musical terminology into his work, reflecting a blending of the arts and suggesting a level of perfectionism and revision in his artistry.
On the other hand, when looking at the domain of conducting, the performances by composers of their own work, like those mentioned on LibreTexts, may not always be the definitive best interpretations, indicating that the perfection of an artistic work can have different dimensions and is not solely defined by the creator's ongoing revisions.