Bastion
60% Off $5.99 USD usually $14.99
Bastion Soundtrack Edition
Includes Bastion and the Official Soundtrack
60% Off $9.98 USD usually $24.98
Bastion: Original Soundtrack
60% Off $3.99 USD usually $9.99
Added information from Pledge's comment:
Dustforce is also available at 50% off for Midweek Madness
http://store.steampowered.com/app/65300/
DustForce
50% Off $4.99 USD usually $9.99
Dustforce Soundtrack
50% Off $1.99 USD usually $3.99
Soundtrack Bundle
Includes 2 items: Dustforce, Dustforce Soundtrack
50% Off $6.49 USD usually $12.99
Many thanks! I was waiting for it to drop, so I could grab the soundtrack edition.