5: How to Learn and UNDERSTAND All the Major Key Signatures and Where to Place Your Fingers "violin" 

Learning all the major key signatures is easy with the right approach, especially for violinists, since some believe that our modern system of key signatures was invented because of the violin.
Additional points of interest:
The key signatures D flat major and C sharp major are, for all practical purposes, identical; as well as B major and C flat major, which means that the scales are "enharmonic."
A shortcut to find the names of the flat key signatures (after the key of F with one flat) is the name of the next to the last flat.
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