Hi,i'm working on 'over the rainbow' from alfreds adult all-in-one course.In the second and third measures i'm struggling to find a comfortable fingering for the left hand:E B Bb | F Ab | G G A | Fsh F G |5 1 ? 4 2 3 2 1 ? 2 3At the Bb i want to play 2 because reaching to play the flat with the thumb feels awkward,but then playing Ab after with 2 feels odd.Then are both the Fsh and F played with 2?thanks kevin