“透彻分析,有序练习”——关于如何演奏好手风琴技巧中的“震风箱”

手风琴作为活簧类乐器,是一种既可以独奏又可以伴奏的乐器,以其自身特有的结构系统加之音色变化丰富且便于携带,得到了全世界音乐爱好者的广泛认可和喜爱。在手风琴演奏中有众多的双手配合的演奏技巧,如"手指刮奏""轮指"等一系列的演奏技巧,其中,"震风箱"技巧不仅需要演奏者扎实的基本功底,同时又要求有速度、力度的精准演绎,是最能够彰显手风琴演奏者演奏水平的技巧之一。

Seismic facies response of tectonics and direction of block movement in the northeastern South China Sea

The close relationship between the structure,evolution,and resources environment of the South China Sea is a current research focus and also a focal point of our study.In this paper,we use regional seismic sections to analyze the relationship between seismic facies and the structure and tectonic evolution of the northeastern South China Sea and propose new points about the structure and the direction of block（land mass） motion.First,the tectonic features are clear and can be divided into five different structural units which are both linked and independent of each other.Second,it doesn＇t matter if the South China Sea basin pattern is extensional,weakly compressive,or strongly compressive,the regional tectonic stress field is unified.For the first time we find that two shallow subduction zones are recognized in the seismic profiles.All the tectonic blocks have accordion-fold-style structures,converging in the east,and the South China Sea exhibits different stages of basin development：growth, maturity,end,and termination.The block subduction and regional block dip directions are all aligned with the regional stress field.

试析风箱运用是手风琴演奏的生命

手风琴风箱技巧,是手风琴演奏时表现音乐语言的重要手段。本文总结了手风琴风箱运用的几种常用方法,并作理论上的探索。