For violinists and violists, using a shoulder rest adds a great deal of comfort. But getting them on can be a little tricky if you don't have a third arm.
If your bow is slipping, or you're just not generating the same amount of sound, you probably need some more rosin. If the bow is brand new, or just rehaired, you'll have to spend quite a bit of ti...
Is your peg slipping or not staying in tune? Most times you just have to push the peg into the pegbox while turning. But also re-winding the string so that the string is pinched against the pegbox ...