| Fig. 154. |
The first species may be employed occasionally in the course of an exercise.
Make plentiful use of imitation.
When more than one line of a choral is used, it may be treated by having the other parts continue through the holds, as at a, or letting them rest, as at b. [[Fig. 155.]]
When, in place of the hold, the movement continues, it is necessary to interpolate a full measure in place of the hold. [[Fig. 155] and [Fig. 159.]]
| Fig. 155. |
The note under the hold may be continued the extra measure, or the part may rest and then reënter. All that is required is that it begin after the lapse of one measure, i.e., when the line ends on the accent the next line begins on the weak beat of the measure following, and if it ends on the weak beat then on the accent of the next measure.
The interval at any hold except the last of a choral may be either a perfect (a) or imperfect consonance (b). [[Fig. 156.]]
| Fig. 156. |
Modulation often occurs at the holds. If so, make it clear.