@rf132 welcome to the forum! Glad to have you hear my friend. Yes, folksy style playing 1st position,. Bluesy style playing, 2nd position, harmonica plays in the key up 5 letter names. Position chart is the easiest, but circle of 5ths works too. I explain it here:
On the circle of 5ths:
Look at the space on the chart for a harmonica in a given key, it will play in the song key in the space to the right.
Look at the space on the chart for the key of a song, to figure out what harmonica you need to play in that key song, look at the key in the space to the left.
@theodoreowens welcome to the forum! The tabs do not change. They are the same no matter what harmonica you play. (You will just be playing the song or melody in a different key depending on what harp you pick up.)
More here: