C.A. Seydel Söhne Sampler C/G, solo-tuning in the keys of C and G, three fulll oktaves in two keys, conveniently swichable with the slider or lockable, half-valving, some important bending notes (Bending: technique for lowering the notes), full sound, thanks to the Stainless-Steel reeds for dynamic playing and good tone response, corrosion-free German Silver reedplates, precision made acrylic comb, optimized free-moving and air-tight slider-mechanism with innovative locking device for optional fixing of the pressed slider, ergonomic mouthpiece with round holes (silver plated) for lip-friendly playing, variable slider setting: if the slider is turned 180° the instrument plays in G (open slider) and C (slider depressed) (default is C-->G after swapping the slider G-->C) - the mouthpiece must be unmounted to switch over the slider.,