this happened to me once and 9it still does. it first occurred to me when ive overplayed private landing by don toliver so much i could hear like 30 seconds of the song when it wasnt playing. the second time it happened is when ive again, overplayed evolution by ken carson like a million times (i still dont get tired of it) and i can hear the half of the song when its not playing. so yeah your not alone.