愛しのリナ / ア･イ･タ･イ Tel is a single by Miss Orange Shock released in 1980 on the label Express. I can only find one of the two tracks that are on this release. The genre for this is J-pop/synth-pop/new wave.
The only track i can find, 愛しのリナ, is very nice. She has two different voices she uses. One is deep and serious, not much emotion in it and is pretty monotone. The second voice is high pitched and happy sounding. The too voices being opposites makes for an interesting combination. The rest of the music does the same thing as the voices and the mood changes with the voice being used.
Listen to it here