It is most important that the violin be properly tuned.
The four strings tuned in perfect fifths. (see below):
First, get a perfect A. Usually the A is tuned in pitch 440. Violin may be tuned with the aid of a pitchpipe, a tuning fork, a piano, or even a tuner. See Fig.4
To tune the D, G, and E, see below:
For a beginner, it is very useful to have four adjusters so that it is easier to get adjusted when the violin is only slightly out of tune. (You can use individual adjusters or a tailpiece with all four adjusters.)
If the string is loose, or the adjuster cannot do the job, the best way to tune the violin is to sit down, place the violin vertically on your lap, with the strings facing yourself. See Fig.5
1. Use the left hand to hold the neck of the violin; the left hand thumb should pluck the string lightly to find a correct pitch while the right hand adjusts either peg A or E, one at a time, slowly.
2. Use the right hand to hold the neck of the violin, with the right hand thumb to pluck the string lightly and find the correct pitch while the left hand adjusts pegs D and G, one at a time, slowly.