CHAPTER I.
RHYTHM.
Sound is the effect produced by propagated atmospheric waves which affect the sense of hearing. Irregular impulses, propagated through the air, produce noise. Regular impulses produce musical tone.
The duration of tone is indicated by symbols called notes. Following is a list of notes:—
| or | Double whole note or Breve. |
| Whole note or Semibreve. | |
| Half note or Minim. | |
| Quarter note or Crotchet. | |
| Eighth note or Quaver. | |
| Sixteenth note or Semiquaver. | |
| Thirty-second note or Demisemiquaver. |
Occasionally the sixty-fourth note
is used. Following is a table of the relative value of notes:—
