CHAPTER IV
Abbreviations, Signs, Etc.
36. A double bar (or single heavy bar) with either two or four dots indicates that a section is to be repeated. If the repeat marks occur at only one point the entire preceding part is to be repeated, but if the marks occur twice (the first time at the right of the bar but the second time at the left), only the section thus enclosed by the marks is to be repeated.
37. Sometimes a different cadence (or ending) is to be used for the repetition, and this is indicated as in Fig. 24.
38. The Italian word bis is occasionally used to indicate that a certain passage or section is to be repeated. This use is becoming obsolete.
[39.] The words da capo (D.C.) mean literally "from the head," i.e., repeat from the beginning. The words dal segno (D.S.) indicate a repetition from the sign (