Perhaps I should have said 'personal computer'...

Perhaps I should have mentioned the graphical front end (without which, computers would still be relegated to being office machines for word processing and accountancy work)...

Perhaps they sat around and went 'you know, loads of musicians are telling me they want a device that sequences and records real audio that they could make records on'... No, they built the device first, and then the market found a use for it. Many, many uses that no-one had the slightest idea of until the tool to realize those needs was built.

Until the arranger industry builds the tool, no-one is going to use it...