Spint French horn, i.e. mimicking an orchestral horn with valves for switching pipe lengths

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General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture > Special instrument [spint], i.e. mimicking the ergonomy, shape, sound or other characteristic of a specific acoustic musical instrument category > Spint wind instrument, i.e. mimicking musical wind instrument features; Electrophonic aspects of acoustic wind instruments; MIDI-like control therefor > Spint brass mouthpiece, i.e. mimicking brass-like instruments equipped with a cupped mouthpiece, e.g. allowing it to be played like a brass instrument, with lip controlled sound generation as in an acoustic brass instrument; Embouchure sensor or MIDI interfaces therefor > Spint horn, i.e. mimicking conical bore brass instruments > Spint French horn, i.e. mimicking an orchestral horn with valves for switching pipe lengths