Numbered musical notation and so on. Dashes after a note lengthen it, each dash by the length of a quarter note. A dot after the plain or underlined note works increases its length by half, and two dots by three quarters. The underline, along with its joining, are analogous to the number of flags and beaming in standard notation. So are dotted notes. But the analogue stops at notes worth three quarter notes and beyond, where dashes are used instead. The number "0" represents the musical rest. The rules for length is similar to that of the note, except that it is customary
Numbered musical notation note, indicating that they are to be played very rapidly either before the start of the main note or after the end. In some versions of the numbered musical notation, underlines indicating note length are written above the note instead. Ties and slurs may be written below the music line. In some versions, octave change is represented in a different way. Instead of dots above or below the numbers, a horizontal line is drawn and the number is written on, above, or below the line. Another variation is to put octave bar "|" on the side of the number. An