Mason & Hamlin Concert Grand 9'4" #11833

One of the largest and heaviest pianos ever made is the Mason & Hamlin 9'4" Concert grand. Also the width is larger than most. The treble key block is about 9" wide as opposed to a more common 2" width. The extra width at the cornice and at the tail end give the bridges a little more room, keeping them further from the edges of the soundboard.