Thanks All,

Just to clarify. As I mentioned the sequence had not been overwritten. Just to make sure I went back and pulled the original sequence MIDI file from the zip I downloaded when I made the purchase. This totally unmodified (not even renamed) file had the same problem, so definitely not a case of the file being saved with a lower volume setting.

When I say channel I am referring to the actual channel number which may, or may not, be the same as a given track number depending on the actual MIDI sequence. In this particular case it happened that Track 1 was using channel 1 for the Brass Section patch. But of course that was just coincidental.

Perhaps a different MIDI file had set the volume on channel 1 and each time we have used this particular MIDI file we had previously played the one that set the volume on channel one. That would explain it not changing after a power on reset which I had thought would fully reset the Ketron. If that is the case then it will not be fun tracking down which file is the culprit. I will try just playing the offending MIDI file as the first one after the next power cycle to see if the problem is gone.

I know that velocity changes would only impact how hard the key was "struck" but I was trying anything that might change the perceived sound level as I was trying to track this down.

Now, assuming that something had set the volume on channel 1 in the Ketron to almost nothing. How would I change the volume on channel 1 (or any other individual channel)? My thought here is that I could send the appropriate setting change at the start of every MIDI file to make sure that this is not a problem in the future. Since changing the volume setting in the sequence on channel one did not have any impact where else would I change the volume level on an individual channel?

Thanks again,
Burt