Re: Vibrato pedal for a cello..

["Cino" <CinoPolnesi@att.net>]

From: "jimfowler" <jimfowler@prodigy.net>

> i thought that a "rapid repetition" of two or more notes was generally
> referred to as a "trill"

That's correct.  Also sometimes called a "mordent" or even a 
"pralltriller."
My general understanding is that one note rapid repetition = tremolo, and
alternating note rapid repetition = "trill."  Many note numerous 
repetitions
= "looping."

Now for some mordant humor:  The great American blues vocalist Janis Joplin
was quite fond of vocal effects such as vibrato, tremolo, etc.  She even
named one of her records "Cheap Trills."  ;-)