Thanks Bob for the input

All of that as you suggested was tried, including opening in RB, examining the MIDI data, looking for CC events etc.

As mentioned, there were no program changes, control changes etc in the file.

What was in the file were note data on two separate channels (8 & 9). This didn't represent two different instruments tracks, because it was just a solo piano recording. I'm not sure why there were 2 channels.

The file played fine. The file was actually created by a BiaB user, but I think this was recorded on a Nord Keyboard.

The problem turned out to be that BiaB (and RB) wouldn't change the volume using the slider. The notes were all changed to use the same channel, and the slider volume worked.

The VU meters faded down and up with the Track volume slider, but the output level never changed.

As mentioned: I really do think this should NOT have stopped the volume slider from doing anything at all. Why couldn't the volume slider for the track change the volume on channel 8 & 9? After all, they are just 2 channels on the same 'Track'.

Trev

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