#1
How shoul I play this?:


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-----8~------------
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-----7~-------------
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With pick or not? HOW?
#2
Pick for one and finger for the other.

Or both fingers.

Or both with a pick, muting the strings in between.
#4
*moved*

You could also play the A string with a pick while you fingerpick the B string (this is called hybrid picking).

You could mute the D and G strings and strum.

-SD