Hi there!
I find the initial speed of my trilling a little too slow and as the trill lasts longer, it gets slower. I try to train my fingers by trilling (1-2, 1-3, 2-4, 3-4 and so on) for a period of time but it seems that my fingers only get sore but do not really improve in strength. I will like to know of some tips, if any, to train my finger strength so that I can trill faster and longer.
Thx in advance!