Christoph de Babalon was first known in the early jungle/drum & bass scene of the 90'. In recent years and made a "comeback" and managed to make his music evolve while maintaining a very high quality level and keeping the mysterious feel his tracks always have. The Mark (another producer from Berlin) side is also interesting and really good, the "Duet for melodica and claves" being exactly what its name imply, and the second tracks is its continuation with some drum & bass beats added. This split is a very nice piece of dark and smart drum & bass.
Recommended stuff!
The BC page.