Not only would you get the Analog Lab 2 and or 3 (you can't have them both at the same time but, Analog Lab 3 would re-integrate AL2's presets into it.) but, you also have Ableton Live 9 and UVI Workstation Grand Piano D.
Ableton Live 9 allows you to create songs in either Session view or Arrangement view. It has it's own instruments, sound clips and samples and, you can integrate Analog Lab into it by telling it where the VSTs are. Though complicated to use if you don't have the experience with it, it can be learned with time.
The UVI Workstation is a grand concert piano D which has sampled sounds which makes it sound like the real thing. Although complicated to get it registered (You have to register with iLok, a separate company) and then with UVI themselves. You could also buy additional instruments from them to integrate into the UVI workstation and, the Workstation can also be integrated into Ableton Live 9.
In short, you'll be busy for a while.
Also, I wondered whether to get the 61 key or 49 key Essential and determined that, if I wanted to play the keyboard (I don't have that skill yet,) I'd get the 61 key version but, since I want to compose music, I decided (and confirmed by the sales staff at the MOOG store) to go with the 49 key version. The 49 takes up less space and I can transpose the keys 1 or 2 octaves up and down.
