论文部分内容阅读
手风琴(accordion)自1829年奥国人达米安(Damian)发明以来,已有一百五十多年的历史。如今常见的大型手风琴,左手按钮有六排计一百二十个(6×20),即:辅助低音、基本低音、大三和弦、小三和弦、属七和弦、减七和弦。辅助低音按钮与基本低音按钮的配合使用,给很多低音旋律提供了演奏的可能性;但有的旋律在左手按钮上演奏,仍然是比较困难的。如果设法增加一排低音按钮,将使左手的演奏更为方便,无论旋律或音阶及半音阶,均能较为方便地进行演奏。设想增加的一排低音按钮,称为重辅助
Accordion (accordion) Since 1829 the Austrian Damian (Damian) invented, has more than 150 years of history. Today’s common large accordion, the left hand button has six rows of 120 (6 × 20), namely: auxiliary bass, basic bass, junior, minor triads, seven chords, seven-chord reduction. The use of subwoofer buttons in conjunction with basic bass buttons offers the possibility of playing many bass melodies; however, it is still difficult to play melodies on the left hand buttons. If you try to add a row of bass buttons, will make the left hand performance more convenient, regardless of the melody or scale and chromatic scale, can be performed more easily. Imagine an additional row of bass buttons called heavy assist