Above all OS 4.0 is a very good work, thanks to Ketron.

I have a problem with some midi files (not all) : with Song Play parameter set on Fast the display of lyrics is out of sync with the song while if i set Normal the reproduction is correct.
Moreover with other midi i must insert one empty beat at the beginning otherwise
the initial reproduction (first 2-3 beat)became very slow (as if the SD1 is flood) with Normal on Song Play the reproduction is correct.

Any idea??

PS: i must use Fast on Song Play.