The concept of a sequencer in this day in age is an interesting one and I like where Roland is going with this. I have always felt the evolution of the sequencer needed to be powerful, sophisticated, and easy enough to make up an entire song. Karma on the Korg was cool at cadences and rhythmic passages, but could you make up a song with it and do it easily? No. The simple sequencers in the drum machines don't go far enough to allow sophisticated breaks, intros, endings, build ups, etc. So the concept Roland has taken is very much an organic evolution of a Song Makeup combined with the traditional approaches sequencers were used for. I could imagine Roland releasing a "Style Pack" with pre made song templates to load into the sequencer to get your creative juices flowing. Combine that with the ability to interface with external equipment and DAWS and you've got yourself a pretty dynamic composing tool.