Harmonic distortion and "analog warmth" are sometimes misleadingly suggested as core features of lo-fi music.[1] It is characterised by the inclusion of elements normally viewed as undesirable in professional contexts, such as misplayed notes, environmental interference, or phonographic imperfections (degraded audio signals, tape hiss, and so on). Pioneering, influential, or otherwise significant artists include the Beach Boys (Smiley Smile), R. Stevie Moore (often called "the godfather of home recording"), Paul McCartney (McCartney), Todd Rundgren, Jandek, Daniel Johnston, Guided by Voices, Sebadoh, Beck, Pavement, and Ariel Pink.