Unknown Commercial Song From The Early 2000's [S]

When I was a kid, somewhere in the early 2000's, there was a commercial (or maybe a series of commercials) that always had the same song playing in the background. I can't remember what the commercial was for, I think it was either for a travel company or a restaurant, but I'm not sure. 

I don't know if the song had any lyrics, but I remember a small part of the instrumental very vividly. The part I remember (which was toawrds the end of the song) had this very electronic-y sound to it. Like a synthesizer or an electric guitar. Now I'm not very musically inclined, and I can't read sheet music for the life of me, so I don't know what the proper "notes" would be. But I remember them going something like this: High (long note hold) - low (mid length note hold) - high (long note hold) - low (short hold) - really high (crescendo? + mid length hold)  - low (short hold) - high (short hold) - low (long hold + fade out)

I made a MIDI version of the audio using OnlineSequencer.net, you can listen to that here. Again, I'm not very musically inclined, so sorry if it sounds a bit off.

Any tips would be greatly appreciated!

Edit: Been given a couple suggestions, so I'm starting a list of songs so as to avoid any repetitive answers.

• Enzyte Smiling Bob Theme
• Lovefool by The Cardigans