I absolutely hate practicing when I'm sick and/or my ears just aren't working right. On these days I usually just practice the exercises at the front of the Arban's book. That way I know my face will stay in shape and I don't have to put myself in a bad mood. If I have an audition coming up, or a performance, or anything that requires music which I haven't fully prepared, then I will run through those selections as well. I stop as needed, try to correct what I missed, and play with heart even if I can't tell. My warm-up and cool-down methods on these days are just low tones and one octave scales
T.J. Davis
Wessex Dolce
G&W Kadja