Basically, try not to judge people's music taste too much on appearance. 
I've stood up to play in enough jazz clubs and watched people almost faint 
in fear that I might be some kind of throw-back rocker about to break into 
'Whole Lotta Love' (great song but inappropriate at jazz standards gigs). 
The dead-heads described sound very much as though they've realised what 
I've realised, Acid Jazz is shit hot, end of story!
Yours sincerely (with peace and love),
                 Simon Brown
                 s.j.brown@ucl.ac.uk
                 UCL Geology (2nd year)