The Violin: The Beginners Guide to Reading Violin Music.

I don't think it is important to learn how to read violin music if you have a good ear and are not really interested in classical violin. Most tunes that can be played on a violin other than complicated classical pieces, can be picked up "by ear." In fiddle music for instance lots of songs are passed down the generations from musician to musician. The only problem with this is that it gets a bit like "Chinese whispers" as the further you get from the original the different it gets, plus you will get variations as violinists change some of the notes.
Reading music is an option that I think will enhance your playing and will give you a different approach to learning a new tune. For me, I do both; sometimes I will find the music and learn the piece, other times I will pick it up be listening to it over and over. If you are just beginning to play it is something worth considering, and here is a tried and tested technique that you may like to give a try. Every note in sheet music corresponds to one of your four fingers that you use to play the violin with. These notes also correspond to one of the four strings, either E, A, D, or G. If you have the sheet music for a particular scale or tune then you can use a very simple way to begin learning what finger corresponds to what string.
Start off by getting the sheet music for G Major. Make sure that this is the music for the two Octave scale as this will use all four strings.
We know that the scale of G will start-off on the open G-string so under the first note on the sheet music, you should put the letter "o" which means open. The second note will be your first finger on the G-string so mark underneath it 1 and the third note will be your second finger on the G-string so write 2. Follow the sheet music all of the way up and as you change strings write the numbers underneath the note so it will look like O,1,2, 3.
If you don't know how the Scale of G-Major should sound, find a site on the internet with a midi file so you can listen to it.
This article is by no means the complete guide to reading sheet music, but I hope it will give you a rough idea on how to go about the basics.

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