Answer:
Intentional practice is the core factor of musical talent and any skills, according to the opinion of the investigators.
Step-by-step explanation:
The reasons behind this answer are that we need to keep the meaning, in other words, we can't modify the meaning. We need to only change the words, to use totally different wants that have the same meaning. We need to use synonyms. Also to do so in a more effective way we can change the order of the sentence and build it from the complementary part to the initial one.