I only know riffs from rock music, i.e. guitar riffs, where a riff simply is a short catchy melody to me.wagtunes wrote:A riff is some kind of short melodic phrase. It can be a bass line, a sequence, lead line, chord progression or just about anything where the melodic element is distinct and relatively short. Most riffs are no more than 8 to 16 bars before they repeat.
I could post tons of examples and point them out but it's something you either understand and have a feel for or don't. It's like trying to define porn. You just know it when you see it.
I will say this much. Your question sure explains a lot.
But "synth riffs" sounded unusual to me...
In that case even an arp might produce riffs
