These are all of the notes in the First Position.

These are all of the notes in the Second Position.

These are all of the notes in the Third Position.

These are all of the notes in the First Position.

These are all of the notes in the Second Position.

These are all of the notes in the Third Position.

What style of pick you use is entirely up to you. Picks are made from many different materials and many different thicknesses. Some are smooth and some are textured. Thicker
An add chord is a chord where an additional note, or extension, is added to a basic triad without changing the original chord structure or stacking extra thirds as in