After a short umming and ahhhh-ing session I decided upon these two running orders for the semis
Obviously we know what is in each semi AND who is in the bottom and top halves of each draw.
My personal taste sways the order a little bit but I have tried to keep similar songs apart and keep the genres switching. I have also tried hard to keep song not in english apart too, especially when they are few and far between.
There are some really hard decisions to be made:
top half of semi 1 has a lot of mid-tempo dance-y songs
bottom half of semi 1 has a glut of girls singing ballads
top half of semi 2 is quite uptempo
bottom half of semi 2 has a lot of tracks that are mid-tempo and slower.
The real running order won't be anything like this (it never is!) and I wait to see what they came up with!