Lo-fi for lo-fi’s sake?
FWIW, there was various hardware for music making for Apple ][, samples include
http://eightbitsoundandfury.ld8.org/hardware.html
Also software for digital audio recording and playback, one example here
http://www.atarimagazines.com/compute/issue88/Audio_Recorder_For_Apple_II.php
My own first introduction to the idea of digital audio was an executable that played a very low bit rate sample of the intro of Van Halen’s Aint Talkin Bout Love.