Live offers two main views—the Session View and the Arrangement View—that interact in a powerful and unique way, allowing you to create, produce and perform your music all in a single application.
Here is the principle behind each view:

Session View
Live’s unique Session View acts as a powerful musical sketch and launch pad, allowing you to try out new ideas easily and improvise freely.
Each cell in the Session View grid can hold a recording, MIDI file, or any other musical idea. These ideas can be recorded on the fly or dragged in from the Browser and played in any order and at any time you wish.

Arrangement View
The Arrangement View offers a timeline-based approach for traditional multitrack recording, MIDI sequencing and other music production tasks.
You can even improvise in the Session View, and all of your actions will be recorded into the Arrangement View, where they can be edited whenever you like.