Yamaha Flute - YFL412The YFL412 flute uses the same designs as the excellent YFL212 student model, upgraded with a . 925 solid tube to give added depth of tone and projection. Yamaha has a history of investing in the development of their musical instruments and through this they consistently produce some of the best student instruments available. This model is the closed key option but open hole models are also available. The YFL412 is well worth considering as an upgrade