Hi
I don't have a Tyros 4 but I did have a Tyros 1 a few years
ago and the main reason I got rid of it was, mainly its
appearance.
I felt it did not match up to what I'd expect to see on the
bandstand or whatever at a professional gig or performance.
I always felt I was playing a home keyboard or kids toy.
I am sure the Tyros 4 has great sounds and styles but I would
not buy one unless it had a 76 note keyboard and finished in
black, similar to the Korg PAX3 or the Roland G70 which I have
now.
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Roland Juno DS-88 Roland BK-7m. Midi Accordion