OK, so I've been playing guitar and composing for quite a few years but this is the first time I'm venturing into the world of music software.

The midi controller I want to buy comes with a version of Ableton Live Lite AND Komplete Elements as a free gift.

Question no. 1: Do both of these programs do the same thing? That is, provide a sound library and access to recording my compositions on my computer?

Question no. 2: I'm not a big fan of tab. I like notation and lead sheets. For this purpose I'm looking at Finale Songwriter. Has anyone used this software before and found it adequate? I plan to use it for lead sheets, chord charts and scores.

Question no. 3: Do any of these programs integrate? That is, can I input a score on Songwriter (or something similar) and then play the file back in one of the other programs?

I'm just trying to get started, and I don't need a bunch of bells and whistles. Thanks for your help in advance.