Mastertune (1995 - 2003?) was an German project arround Carsten Woehl and Oliver Schütt (in the past also S.T.E.F.F.E.N. and M.S.) producing EBM / Industrial / Synth-pop music. It appears that after 2003 the project was put hold but recently they seem to have reformed.

Read more about Mastertune on Last.fm.