Ilaiyaraaja's interludes

We all know Ilaiyaraaja is a master in orchestration. I noticed a few songs of IR where the interludes begin with a specific phrase (tune), goes on to explore and then return back to the same phrase before starting the charanam. This is really very interesting. I have compiled a list of such songs that I know. Do add any other similar songs that I might have missed out.
  1. Idhazhil Kadhai Ezhudhum - Unnal Mudiyum Thambi
    Notice the first BGM
  2. Ellorum Sollum Paatu - Marubadiyum
    Again notice the first BGM
  3. Oh Butterfly - Meera
    The strings section in the first BGM
  4. Enavendru Solvadhama - Rajakumaaran
    The guitar+flute dual piece in the first BGM
  5. Kuyil Paatu (happy) - En Raasavin Manasile
    Both the first and the second interludes
Here is an audio with all the above interludes. Click on the play button to start playing.

IR-interludecircle...


Hope you liked it. If you remember more such numbers do add them in the comments.

UPDATE: Refer a new version of this clip at http://rameshonmusic.blogspot.in/2012/04/ilaiyaraajas-cyclic-interludes.html.