Hi Bachus
Yes, I am familiar with Telmo's work and we posted back and forth several times in other forums. He used to run three Classic Sound modules with his Tyros 4 before upgrading to the Tyros 5. He is very creative and knows how to ultilize his sounds well and makes good use of his multipads, audio multipads and the different sounds he wants.

I once suggested that he would be very good as scoring sound tracks for movies or videos. Ironically I also suggested he would get good use out of the East West virtual instrument " Voices of Passion", being able to get vocalization effects on top of the other unique sounds he uses in his compositions. He was quite content with his Tyros at that time.

From the video, it looks like he added a second keyboard and synth sounds. He is not replacing the Tyros voices for better ones or ( better VTS), but using a second source to get different sounds that complement his Arranger sounds. Any additional sounds or voices, by any means, degrade the level of the original arranger voices, style, arrangement, audio multipads or minimize the use of his arranger or sound "shabby" in comparison.

Marcus