There are a few artists I have discovered over the last couple/few years, some of whom I was vaguely aware of and others that came out of the blue. Some of them listed below I have investigated quite deeply and have just been amazed at their catalogue, their musical breadth and depth.
Daniel Melingo
Christina Pluhar
Jordi Savall
Prokofiev
Anat Fort
Hadouk Trio
Percy Grainger
Ravel