接下來，要來開始講解比較重要的樂理相關知識。
<The rudiments of music, necessary for learning the violoncello.>
〈學習大提琴所必需的音樂基礎〉
The five lines employed in the notaion as used at present are designated as the staff.
（五線譜是目前被用來做為記譜的譜表。）
The notes are called in the Bass-clef：
（低音譜號當中的音包含：）
