The first song sounds like a violin, some kind of bells (maybe a tambourine or similar?), and some kind of drums. The second was harder, as there's some kind of wind instrument but I haven't a clue what kind, some fairly deep string plucking, and a violin toward the end. The third opens with a church bell, but other than that it's a capella. Fourth, sounds like violins and a mandolin, as well as some heavy drum like a timpani as well as some lighter drums, along with some kind of wind instrument (flute?).
Most of these were barely-educated guesses, but that's the best I could come up with.
