buffet crampon e12 france intermediate bb clarinet buffet crampon e12 france intermediate bb clarinet. developed through industrial synergy between buffet's research & development arm and its production facilities based in france and germany, the new e12f student clarinet came onto the market in september 2012. its body is derived from professional models and made in buffet crampon's french workshops; the key assembly and quality control are carried out by our german teams in markneukirchen. ease of play, reliability, and accurate tuning are the main characteristics of this new buffet crampon clarinet. the e12f: setting new standards for young musicians. it comes with a lightweight ergonomic backpack fitted with extra side pockets.