I HAVE HAD THIS CD FOR YEARS AND HAVE NEVER GOTTEN TIRED OF HEARING IT, ALTHOUGH YOU HAVE TO BE IN THE RIGHT MOOD TO REALLY APPRECIATE WHAT YOU ARE HEARING.  THIS IS THE PREEMINENT THERMEIN RECORDING, BY THE PREEMINENT THEREMIN PERFORMER, CLARA ROCKMORE. HAUNTING, STRANGE, HYPNOTIC, YET MELODICAL, THE THERMEIN IS A VERY DIFFICULT INSTRUMENT TO PLAY, AND CLARA ROCKMORE WAS THE ONLY PERSON TO EVER REALLY "MASTER" IT. IF YOU WANT TO HEAR THEREMIN MUSIC, I GUESS THIS IS THE ONE CD YOU NEED TO GET.