To suit your demand, I've also searched a perfect style for Lambada and it appears that the "#088 DscHands" style match perfectly.
Bass line is like the real Lambada music and OTS voice 000 match also very good.
Here is my recording without tuning anything : OTS voice and Style 088 :
https://app.box.com/s/o6knve448vgoero9dizoqw5w7twqcp41(sorry for some chord mistakes and sorry for the end, I've gone wrong lol, just learned it 5 min before recording).
I think that this style was created by Yamaha especially to match this song.
The tempo is also the good one : 118 as the real song is 119 (mesured on a youtube video of the original Lambada)
For information, here are the chords : Dm Bb C Dm and Gm C Dm
First note of right hand is a A