return preview instead of nothing if it exists already
return preview instead of nothing if it exists already

allows listening to it again after reaching the end
peppy/osu-new,UselessToucan/osu,ppy/osu,DrabWeb/osu,naoey/osu,EVAST9919/osu,smoogipooo/osu,2yangk23/osu,Frontear/osuKyzer,ZLima12/osu,peppy/osu,DrabWeb/osu,smoogipoo/osu,ppy/osu,ZLima12/osu,ppy/osu,naoey/osu,johnneijzen/osu,naoey/osu,UselessToucan/osu,Nabile-Rahmani/osu,NeoAdonis/osu,smoogipoo/osu,NeoAdonis/osu,UselessToucan/osu,peppy/osu,smoogipoo/osu,2yangk23/osu,NeoAdonis/osu,DrabWeb/osu,johnneijzen/osu,EVAST9919/osu,peppy/osu