Lee I've been following The Solitaire (YAMATI40) since the first day he appeared on YouTube. He is an awesome player, he started playing a Wersi organ (I guess he still has that one) and later made an organ with the Tyros 3 and 4. Definetively I think you should go for the Tyros to build your organ according to what I think you enjoy most: orchestral music. There are very few orchestral styles for the Pa series.