In the end , we are all saying the same thing. You can use either the keyboard internal sequencer or an external computer to capture your initial ideas. All that is different is the preference that people have as to which tool they use and which they prefer. There is no right or wrong answer its just a preference.

Diki Correctly pointed out that you can do most of the sequencing on an internal keyboard without the use of an external computer. But he asked the question why would you?. I have answered the question why I would. You may not, and Diki may not, and I am sure neither of you are alone in that view.

But it is clear that keyboard manufacturers realise there are a whole bunch of people out there that use their keyboards in different ways and that is why they have accommodated those who wishto use the internal sequencer for whatever reason and also wish to align the keyboard with an external computer.

Everybody is happy and able to make great music as they choose .