This is often used in popular music and is simply a curved line drawn from one note to another note of a different name.

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A SLUR may join 2 notes as shown above in the 1st bar or it may be written over a group of notes as in the 2nd bar.? It can extend over several bars.? It is mainly used to indicate a sequence of notes that should be played in a smooth, connected fashion.? Slur signs also indicate to singers that the passage should be completed in one breath.?

The slur sign is described to you so that you will never confuse it with the tie sign.? A tie sign is only ever drawn between notes of the same name.?The slur, on the other hand, is drawn over notes of a different name and over any number of bars.??????????????