Three from one... Helios, Goldmund and Sono.

It is hard to tell what music in 2007 will bring; it looks set fair for another good year and live music of all kinds is likely to remain prominent. It seems unlikely that 2007 will be dull, whether or not my predictions are correct, as there is just too much going on at the moment for it to be any other way.
There may be some subtle changes and I can imagine that some dance music - perhaps pop-trance in particular - will return from its recent slumber. A slightly longer bet would be that 'ambient' and 'chill' will also make a comeback along with 'down-beat electronica' and perhaps 'trip-hop' too.

The title says it all - Keith Kenniff is Sono, Helios and Goldmund and he has released under all three monikers in 2005/6.
The results range from Bjork's Hyperballad, re-worked as a harp-led piece on a 10" single (Sono), to the electronica-plus-acoustica of Eingya (Helios) and the rather more piano-led and acoustic-based Corduroy Road (Goldmund) but all three are entirely instrumental. They are however far from dull and the two albums alone amount to almost 90 minutes of quite pure and surprising beauty.