Paul Harvey
... that Paul Harvey improvised a viral piano piece using only four notes?
... that <b id="mwAU8"><a href="./Paul_Harvey_(pianist)" id="mwAVA" rel="mw:WikiLink" title="Paul Harvey (pianist)">Paul Harvey</a></b> improvised a <a href="./Viral_video" id="mwAVE" rel="mw:WikiLink" title="Viral video">viral</a> piano piece using only four notes?