Hi there i was reading your post and i remember this same kind of thing occured to me already.Recording demos with nothing or barely nothing on it is a drag.Once i had to record drums on 5 songs /demos with only a guitar and a click track.The guitarist/singer had barely worked with a metronome and most of his playing was flamming badly with the click.So here you are trying to make it groove [img]confused.gif[/img] .I was quite young at that time and i didn't dear ask the sound enginneer and producer to do something about it so i did it anyway but i only focused on the click.At that point i asked them to turn down the guitar in the headphones and pump a bit more the click.
If i come across those situations now I try to add a little programmation or smth to bulk up the track rythmically it can be a loop or anything.
I would say that in your case maybe the "pre-production" part wasn't well made.It would have been easier maybe for you if you had more music to play to.And also knowing before hand what style you'd have to play .
To sum it up i'd say that it's not really your fault and that they should maybe have prepared their songs/playbacks better.
Bye
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