I have read through the owners manual and the reference manual.

I would be interested in some clarification, or verification.

Can you layer 4 sounds.. I know there are 3 right and 1 left,
No it cant

but in non split , can the left sound be layered with the 3 right? It also appears that sustain is not possible for the left sound.. Is that correct?
It is possible to select sustain for left ( press Direct acces and push the foot pedal)

It also appears that chords do not appear in SMF's unless they are embedded . Is this true?

Can it read karaoke files (CDG and MP3 contained in Zip folders) Or do you have to convert to a Yamaha format?

[i]Genos dont read zip files , unpack them in a folder you can[/i]

How large of a flash drive can the Genos read ? No idea

Is it possible to read a USB drive containing for example 30,000 karaoke files in a single folder, and use a
search feature to locate a specific song?

There is no sampler? Is this correct..? Yes
Can you import a wave file sample... for a tone, not a pad? With YEM you can do this


Would be interested in the same points with the SX900.. = the same

The folder size limit is 2,500.
Nobody has the chords embedded in midi files except Roland.
You can sustain LH.
There are those that report using 256 USB with no problem.
Plays CDG files perfectly. Not zipped of course.

Fran getting a Genos