Seeing as this thread is here, can anyone clarify for me what the sub-genre of this stuff is that's characterised by the repeated piano riff? Or was it a mutation that mainly came in with the mainstreaming of the 'real' Chicago house towards the end of the 80s/early 90s? Very little of the original stuff seems to feature it, although it somehow seems characteristic of it in my memory. Trying to find a compilation for a friend, but what she's after seems to be either (i) a very small sub-section of house or acid house (ii) a slightly naff dilution that only really appears on cheesy 'Chart Hits' or 'Club Anthems'-type compilations interspersed with a load of total shit, or (iii) a different genre whose name I don't know. Anyone help?