Tony Dixon Low D Alluminium 2-piece Whistle. Utilising the classic straight bore aluminium low whistle design body, this is a solid feeling and sounding instrument. Much like its soprano counterparts the aluminium body reflects the sound wave with less absorption providing you with a more metallic tone as you would expect from this harder material.  We only make low D metal whistles as tuneables as the greater mass of material takes longer to warm up and so come up to playing pitch which can be a problem with one piece whistles.