enna Music4ever sir, "on listeners of another era"nnu solleetu, namma era pathiyE (late 70's,80's) ezhudhi irukkeenga:-)
In fact, all the MSV songs that you've mentioned are post-IR entry, which kind of vindicates my theory that people took real note of MD as someone important for a movie after the entry of IR! (adhukku munnAdi MGR-Sivaji dhAn ellAm...minjippOna TMS-PS-AMR-Jikki-Kannadasan'nnu ellArum `lion's share' eduththuttu, michcham dhAn MDkku kidaikkum...I mean from the moviegoer / listener's point of view...till recently, i.e. till the V Kumar thread, I was crediting almost all of his songs to MSV, thanks to this confusion-as-to-who-shares-max-credit problem. IR was the first clear winner MD, most times grabbing lion's share credit from even Kamal-Rajini films)...
Though I belong primarily to IR era, I pretty much observe the way my seniors talk about TFM (including my dad who had 78RPM records featuring MKT / NSK)...and I can vouch for the fact that maximum credit for MD started with IR...(agreed MSV had his moments, mostly after IR's entry, like `ninaiththAlE inikkum')...and the only other flag bearer is ARR...ippO uLLadhunga ellAM -VS,YSR,BW,Deva,SAR etc- andha recognition'ai maRupadiyum tholaichchittu nikkudhunga:-( (It's again Rajini song, Vijai song'nnu Ayittu varudhu)