Just to add on to my above post, I personally noticed this dominant synth sound in Nandhavana Theru, while I was expecting some simpler arrangement like the previous RV Udhayakumar-IR combos like Kizhakku Vaasal. I have seen IR hold on to that kind of sound ever since. Even ONOK's 'Ilamaikku' sounds like 'Adichu Pudichu' from Nandhavana Theru, but sounds much better because of a better tune, IMO.
Karthik
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