In the article,the author makes an inquiry of professional skills,harmonic,accompany music forms,so as to make an elaboration of the importance and necessary of impromptu accompany of dulcimer in an theory way.

In a technical institute,the cultivation of musicianship is an important part of quality education,and piano impromptu accompaniment is also the main content for the practice of musical instruments.

Therefore,when deducing music with form of impromptu accompaniment,the mark of a chord should embody concrete features of being concise,prompt and clear at a glance and reflecting practicality and direct perceptibility.

The key to improving the level of piano impromptu accompaniment lies in students′ change of study idea and method.

To learn extemporaneous accompaniment, one must first of all have a good command of the keyboard playing skills and learn one by one the four technical "elements": chord, texture, mode, and key.

The dissemination and inheritance of the ancient music Asi er are marked by "demonstration and internalization" and improvisation.

Many students can not master well an important skill of piano - playing, improvisational accompaniment because of the weak points in their teaching organization and the curriculum.

Piano improvisational accompaniment is a highly demanding skill.