Bonus? Well, it depends...

I just noticed something on the iTunes music store. Santana have (has?) released a new album, All That I Am, and the iTunes version of the album is said to have two bonus tracks, Foo Foo and Yaleo. Well, I'm willing to bet that they won't be on the CD, but that's because Foo Foo was on Santana's previous outing, Shaman, while Yaleo was on the one before that, Supernatural.

So maybe I'm being incredibly naive here, but how is this a bonus? Are all "bonus" tracks on iTunes like this?