In the case of sixteenths and shorter notes, the outermost hook often shows the half-measure, and the inner hook or hooks the sub-division into beats (see Fig. 21).
Fig. 21.
33.—So closely should the hooks follow the rhythm, that where a phrase crosses the measure beginning at the end of one measure, and ending at the beginning of the next, the hook crosses the bar-line too, uniting notes in different measures (see a, Fig. 22). Notes may have the same hook though separated by a rest (see b, Fig. 22).
34.—The hook to a group of notes which ascends or descends may either slant in the direction taken by the notes, or may be straight (see c, Fig. 22). In the writer's opinion slanted hooks are preferable as being a better guide to the eye. In manuscript music, when hooks have to be drawn within the stave, and not above or below it, they should invariably be slanted when this is possible; otherwise they are very apt to coincide with the stave-lines, and fail of distinctness. A common fault is in not making them thick enough. Notes are sometimes "hooked" in accordance, not with