Sunday, April 23, 2006
Lesson-11 : Get the Hang of Bar : Part-1
Now again let us have the graph sheet example.
In a graph, normally, you can see the major equal divisions marked by a Thick lines (say, at every 10th line) and slightly lesser thick line alternating (say, at every alternate 5th line) and very Light lines between two thick lines (say, 4 such lines between Thick & Lesser Thick lines). This pattern is getting repeated in the garph in both the Axes.
These are required for easy comprehension (reading and visual purposes) of the graphs and easy marking of the co-ordinates.
Like this, the Stave lines in the Score Sheet is also equally divided by a major vertical dividing line, called a bar line. Equal means equal in terms of time vlaue of the notes.
Within each bar line, the sum total of time value of the notes remain same. (i.e. whatever may be the types of notes used within that bar, by adding all the time values it will be same for each bar)
Generally, depending upon the song, this total time value of a bar will be equivalent to 4 crotchets or 3 crotchets or 2 crotchets duration.
Within one bar also, the notes of lesser than a crotchet are grouped to make one crotchet equivalent.
All these makes the reading of notes easier in a score sheet.
(There are certain rules of how to write the stem of the notes, either upwards or downwards.
If the notes are coming above third line of the stave, it is written downward, and if notes are below third line, it is written upwards.
And on the third line it can be any way.
This rule does not apply when harmony writing in short score format..)
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