The big buggaboo is with the Tyros you can not setup a specific registration (or individual user sound) to send a specific MIDI bank and program change messages. It does send MIDI PC out but you can not select what it sends out. Unless I missed someting and Yamaha support was smoking someting the day I called?? Oh by the way they said I did not need that capability when I asked for it to be included in next OS!!!

So, you have to do some crazy mapping on your own to get the right sounds to happen. With a SW like Sonar that's not to bad...but if you say need Bank 2, PC46 to select a specific voice on the Motif or other HW sound module...NOT going to happen. The Tyros will not let you setup what you need.

Also, most if not all of the Tyros controllers do not send MIDI data out. IMHO The Tyros is not designed to be a MIDI controller and hence makes a poor one, like most other arrangers I suppose....

Of course there is ways to get by sometimes, just depends on your expectations. I know some do use it to control other MIDI sounds.

The MIDI in to control functions from a MIDI controller (like a MIDI pedal board, MFC10 etc) does work quite well. I used a Roland PK5 pedal board to both play bass and control the style play (into, Var, ending)etc.

Heres a good example....I have a Kurzweil PC3 (had a K2600X) that's a PRO synth with superb MIDI options...in fact I can't remember if I ever had someting MIDI I needed that wasn't there.

I'm sure the Motif has lots of MIDI capability too, beacause it is a PRO instrument and it has to have.

With the Korg PA, I can setup any user voice to send extermal MIDI and set any value for Bank and PC I want...by voice, Cool. (song and sequesncer mode also supports this)Other MIDI control features however are still missing.

The perfect arranger would also be a super MIDI controller, so we could add on sound modules or control other boards...maybe someday?

If you ask Yamaha (I did) they said a home keyboard does not need all that!

Lee