All the "Blue Light" Tyros 4 buttons is probably a sign about it's the final and very last product in the Tyros series.

Cheers
GJ

Btw, I really enjoyed this session with Peter Baartmans
http://www.youtube.com/watch?v=BoOhjGpAKuI&feature=related
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Cheers 🥂
GJ
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"Success is not counted by how high you have climbed
but by how many you brought with you." (Wil Rose)