Tim22 wrote: ↑
Sat Feb 09, 2019 9:04 pm
I am encountering 2 problems. With my 1, 2 and 3 fingers occupied I am obliged to trill using my 4th. More often tham not, this trill sounds somewhere between 'weedy' and 'totally inaudible'. I suppose maybe I just need to develop the muscles of this finger more, but I wondered if this problem also suggests a deficiency in technique.
My other problem is that, as I attempt the trill, one of the other strings buzzes a little. I think, though I am not sure, that maybe in the course of the trill I am inadvertantly releasing some of the pressure on one of the other strings. I have tried squeezing harder to counter this, but a) that is quite uncomfortable and b) It doesn't always seem to help much.
From my experience, this suggests that (1) your 4th finger is still a bit weak, and (2) your left-hand finger independence can use some work.
I have had the same issues in the past. I my case, the slight buzzing was definitely the result of not sufficient finger independence, meaning that I was subtly relaxing the barre finger while another finger was doing something. The solution is not to press harder - because you were already pressing hard enough since the barred finger sound, from before you involved the other finger, was clean. Instead, try to figure out - by video recording if needed - where exactly it happens and what are you doing at that exact moment. Then you just go slowly to retrain and focus on just that little snippet where the problem is. At first I'd do only ascending (or descending - depending what you first note is) slur, paying great attention to my barre finger pressing just as before while I do that. Try the descending (ascending) slur too, in isolation.
Separately, the 4th finger trilling from the 3rd: 3-4-3.. (or 4-3-4..) - is difficult at first because of both the weakness of the 4th finger compared to the others, and because 3rd and 4th are a bit more interconnected and influencing each other due to the tendon interconnections. So in the case of the 3-4-3 or 4-3-4 trill it is a combination of issues (1) and (2). It also does not help that that finger slur combination is probably the least practiced one usually.
Please listen to the teachers who have replied to you already with workarounds for that particular piece. My reply is to be viewed as an optional route to work on in parallel (not instead of what others have suggested), so that in the longer term you develop your technique - which is possible to do based on my own experience. (What you describe, if I understood correctly, is quite easy to do for me now, but some time ago in a similar 3-4-3/ 4-3-4 trill situation I could barely move my 4th finger; it took a few months to develop).