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So he started working out songs on a Dictaphone, progressing to an 8-track and finally a multi-track hard disc recorder as he added increasingly sophisticated layers and textures to his songs.
Reznor took a similar approach to recording guitar parts: he would tape 20 to 25-minute long sessions of himself playing a random guitar plugged to a Zoom 9030 pedal on a hard disc recorder with a Studio Vision sequencer.