This is a passing that doesn't feel like a passing due to the amount of 'so much' he is responsible for that still lives with us and will do so for many more years to come.
Indeed - the feller was definitely an unsung innovator in the sense that anyone with even a casual interest in music probably owns at least two or three records that have the sound of the 808 or 909 on them. I have an old Roland PMA5 sequencer from the 90s that has both sounds built in, and in terms of simulated drum sounds I don't think either have been surpassed despite their vintage. In that sense I suppose he was electronic music's equivalent of Les Paul.