I'm trying to midi from my mm8 into my mm6,but will not receive the midi signal,i went into utility ,and all the settings seem to be set right,what am i doing wrong?

Like your Yamaha midi needs drivers.
https://www.solvusoft.com/en/update/drivers/music-keyboard/casio/privia/px-120/model-numbers/

There is probably a setting that is wrong. The left channel is the default for mono operation. Look in your user manual regarding "PAN" which controls the output going side to side. You MAY be "panned" clear to the right. When you plug into the left, it is the default so in spite of being panned right, they would send signal to the left IF nothing is plugged into right.

Usually that is a programed feature, but you can try the support center at the manufactures website.

While you can probably get the functions sent by MIDI to transfer to the other unit, syncing PROBABLY isn't going to work very well because there is a lag to form the MIDI sync clock (serial data) and then receive it, decode it and do something with it.The transmit time is about 1/3000 of a second and receiving is at least that much time. On rhythm things I have found the ear can hear 1/1000 of a second easily. If one could set the machines to use an EXTERNAL sync clock and drive the SAME clock to both units, you might be able to sync them together time wise as they would see the sync at identical times.

It is not clear whether you are recording audio or MIDI. If you recorded Audio samples, you will get the same sounds back even if you change the voice on the keyboard.

If you record a MIDI sequence, and then play it back you will STILL get the same sounds UNLESS you also record the MIDI voice or patch changes so the voice is changed as it occured when you recorded it. Usually there are options taht you can enable or disable voice changes.

You need to turn off the echo of the MIDI that sends the signals back to the Juno. When near simulataneous MIDI signals are mixed the decoder can receive "partial" messages that re-trigger the notes and then miss the note off commands. If you can't find the setting in the software, disconnect the input to the Juno MIDI while recording it.

How they expect you to find the information is beyond me!!! I downloaded the manual and it appears that the information you want is on page 57.

Near the bottom, and the only way I spotted the parameter of MIDI channel number setting is seeing the range as 1 to 16.

They list this as L part and R part channel/track setting... these will be for the left and right parts of the split keyboard... that is you can set a MIDI channel to between 1 and 16 for both the left and right division of the split keyboard.

I don't think many people would find this... AND shame on Yamaha, there doesn't seem to be a MIDI implementation chart, which you should get familiar with for any MIDI devices you might have... the chart is a quick access to the MIDI capability of MIDI devices and they didn't include one in the documentation for this unit...

I'm not at home right now where all my manuals are so I'll try to explain with out. You will have to set it so that the keyboard is the slave device. Try setting it to Omni receive. It has to be able to listen for all midi channels at once. You have to write a sequence on your computer and hook it to your keyboard by using midi out on the computer to midi in on the keyboard in order for you to use the computer as a controller. If you need the keyboard to create the sequences then you have to hook the midi send on the keyboard to the midi in on the computer play/enter your notes into individual tracks in your software then assign channels, voices etc to each track and save the sequence. Then when you hook it up the other way the sequence will play just like an audio recording except the sound w2on't be there. What you have recorded by creating a sequence is a series of midi messages that the keyboard will receive if you have it set properly and hooked up ptroperly which it will translate into sound. This is a minimalist explanation at best. You will have to have a better understanding of not only your keyboard but also your software and midi in general. There are some pretty amazing things you can do with midi. For instance if you have a lighting controller that is midi capable you can i,mbed all the lighting scene changes for your song in order on one track. You can also control your guitar effects pedal to change effects automatically while your playing. Once you get a handle on it you are only limited by your imagination and your budget. Hope this helps in some way.

If you are sequencing midi tracks you can imbed the patch change in the track and the midi channel assignment and when the sequence plays the info will be sent to the keyboard. Do you have it set to receive Omni?

1. plug in some headphones into the jack.
2. connect to an amplifier or external source.
3. connect midi to a midi-compatible device and determine if device receives signal by pressing keys

If #1 or #2 passes, your speakers are bad.

If #1 & #2 fail, but #3 passes, your setting are set so that there is no sound, but the keybourd still recognizes input.

If all three fail, the keys do not send a signal at all, you should replace the keyboard.