Of, course, sloppy execution is not the intent, but often it comes off that way.....poor, imprecise execution, to me, and to where and how I was taught, does not further increased musical expression.Heck148 writes of Furtwangler's conducting: "The excessive taffy-pulling, distortions are hardly natural sounding....I often find myself asking "WTH is he doing?, why did he do that??"
Because he was a devotee of Schenkerian musical analysis. Furtwängler was always looking to find deeper psychological and emotional truths within the score, and willing to pull the tempo around, in order to achieve a greater expressiveness. All of the musicians that I've heard who were devotees to Schenkerian analysis do this--including Samuel Feinberg, Elizabeth Rich, Edward Aldwell, etc.. None of them keep a steady tempo, but instead pull it around. It's deliberate, and all to bring out and discover a greater expressiveness & meaning within the music. In other words, it's not due to sloppiness, as is sometimes claimed.
"deeper psychological and emotional truths" - the positing of such is indeed extremely subjective - it begs the question - is the conductor performer just making it up??
Whoopee!! so what?? one man's opinion....But Schenker also once declared that no conductor understood Beethoven better than Furtwängler.