This is a very quick introduction to playing in 3rd position on harmonica for the first time. I’m assuming that you know how to play in 2nd position and know the blues scale.
3rd position is particularly good for playing minor blues. It also means that you now have access to another key on your harmonica. The key you are playing in 3rd position is one tone up from 1st position. Here we are playing a C harmonica in 3rd position which means we are playing in D minor.
If you start on the 4 draw, the 3rd position blues scale is very similar to 2nd position with one difference. Here are the notes;
4 draw, 5 draw, 6 blow, 6 draw half step bend, 6 draw, 7 blow, 8 draw
I have a more detailed lesson about playing in 3rd position here if you are interested.