low-pass filter: Prater VI (desert wonderland)
low-pass filter: Prater V (reflexos)
low-pass filter: Prater IV
low-pass filter: Prater III (detall nerviuda)
low-pass filter: Prater II (nerviuda)
low-pass filter: Un palau de viena que surt del trombó
low-pass filter: Gravant vidre en un aparador vienès
low-pass filter: Prater VII (tardor)