NY-based German transplant Frank Holger has been long-active as an experimental music artist. His latest project was a trilogy of which FB3 is the final installment. I haven't heard chapters 1 and 3, but FB3 is basically a collage of found sounds, glitch electronics, concrete musique, rumbling drones and monophonic sine waves... It sounds as if there is a lot of granular synthesis and randomness involved and as if Rothkamm makes a conscious effort at flirting with ambient music without quite wanting to get there all the way, pulling himself back into the almost self-constrained yet total-freedom-enabling realm of avantgarde/experimental music. There is practically no commitment to melody or beats, though the sounds would well complement at least the latter, if they were place in a more IDM-type scenario, for example. If he didn't have his own label (Flux), I am sure he would have been a tasty bait for Staalplaat's recruiters.