There are many styles mixed up within the Noisecore scene. Psycho, Stikky, Jesus Chrust, Bulge ... is filthy punk, also Pöbel Möbel is not really different from those ... Noisecore anyway is not limited to 0,1 second tracks, but bands always integrated all kinds of styles, from related music like punk, hardcore, gore, grind to rockabilly, guitar pop, synth-pop, schlager, actually anything. Bands like Satanic Malfunctions (UK) worked a lot with cheesy synth pop melodies, the songs of W.B.I. (Germany) mostly started with a melodic guitar solo, which, however always ended in a burst of noise ...
W.B.I. - Arschbombe des Monats 12" LP (Side A)
http://youtu.be/nxJIRY-a3pQ