Harmonium triple reeds (Bass+Male+Female), SCALECHANGE with a sliding keyboard available in 9, 11 & 13 scales. 9 stops, 4 extra notes, multifold bellows, special keys, highly finished cabinet, vertical reed board, coupler, best quality The Butterfly reeds perfectly suitable for concert playability. Portable, collapsible design with SPL numbered locks. Comes with a good quality heavy duty padded carry bag.