I was lucky enough to hear this combination play the Rhenish (Rheinische) Symphony in the Musikverein, Vienna. The Gewandhausorchester makes a sound like a fabulous chocolate cake, full of nuts dipped in rum, so rich but so light that you can't get enough. Mahler prepared these editions for performance in Vienna and they bring out Schumann's complex inner parts, in balance, while retaining the energy of the concept. It's as though Mahler was showing what Schumann would have written if he'd had the instruments of 1890. There are some brilliantly cheeky moments, but everything comes from love of the original. As so often in Schumann, the horns get a great workout. Chailly balances grandeur and delicacy very precisely and his tempi are nice and quick - despite a huge amount going on - so that nothing is ever stodgy and nothing drags, something which could have been a lesson for a few famous deceased "greats", I suspect. You CAN have rich AND lithe. A superb recording captures the incredible range of harmonics this wonderful orchestra produces, the second bow hits string. For me, Schumann is unrivalled in his ability to express unalloyed joy, which I hope you get out of this. I did.