Features Clean sounding 2-piece whistle/flageolet which is thereby tunable and easily cleaned. This is the design made for Ralph Sweet these years past, replacing the failed laminated design. Other whistles on the market cannot reasonably compare for the balance of lower tones and ease of higher end. Each one is in two pieces, the tenon also serving as the tuning slide; while meant for A=440, it can tune sharper or flatter to suit your needs as many trad sessions tend to be a little sharp while some religious bodies with their music programs and choirs at times tune a shade flat. This is a well-lauded instrument and once you’ve played upon one, you will wonder if you can ever go back to those plastic-headed typically encountered toys that go WAY FLAT in the second register!