In a study of 212 New Product Development(NPD) projects,we found that the relationship between team empowerment and speed to market was moderated by uncertainty stemming from technological turbulence but not by uncertainty related to technological novelty.

Re-creation is the center for representing the creation in vocal art performance.

So singing a song with emotion needs re-creation for the vocal works.

It depends much on the re-creation of this art work by the singer, through which the magic of the song itself and it expression can be combined to touch the listeners.

Excavate the student s potential potentiality through the learning process from music creation to second creation,From the esthetic activity: imitate-manifestation-creation,so as to cultivate the student s healthy,noble esthetic judgement and positive optimistic life attitude,gradually,cultivate the student s intuitive knowledge and v.

Vocal music performance as the second creation,it s a creation which gives a spirit to vocal music.

Be strictly faithful to the original work and dynamic creative of performance art to a unity,focus on historical authenticity of works and in accordance with the characteristics of the times,to achieve the high performance position of unified the technology and the arts、sense and sensibility are a few important aspects of the vocal work\'s second creation.

In that sense,the display of singing art is not a process of simple duplication or pure imitation but a result of the first creation and its recreation.

The recreation is the kind of creation which can make works alive rather than the actor s subjective imagination.

This article talks about the artistic process of songs,the grasp of atmosphere,the interpretation of lines,recreation of songs and so on.

Realism: the artistic attitude of authors of legends in Tang Dynasty;