| Trevor,
I learned to lip trill by listening the trills on Mendez's recording and then making the trills on the Arban book sound exactly like that: well-notched and fast. the key is in the clarity from note to note. When I lip trill there's no movement in the throat area whereas many people activating the swallowing mechanism and you'll see a lot of unnecessary movement.
The best way is to find a positive example and use your talent to imitate using your ears.
ML |