Clarinet. Nominal pitch: B♭.

Technical description: Blackwood with german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Throat B♭ mechanism for L0 opening two tone-holes when speaker is used to give throat B♭, and one tone-hole when used to overblow. Vent under L3 tone-hole in order to get an in-tune D₄/A₅, C₄/G₅ and forked E♭₄/B♭₅. Extension to E♭₃. Vent hole in bell through tenon of lower section. Boehm fingering system combined with a German, predominantly cylindrical bore. 19keys, 7rings. L0: T + ring F₄/C♮₆; speaker. L1: T + ring F♯₄; throat A♮; throat A♭. L2: T + E♭₄/B♭₅ corresponding ring. L3: T; cross E♭₄/B♭₅. L4: C♯₄/G♯₅; F₃/C♮₅; E₃/B♮₄; F♯₃/C♯₅; G♯₃/E♭₅. R1: T + ring B♭₃/F♮₅ via correspondence; side E♭₄/B♭₅; side F♯₄/C♯₆; trills 1-2. R2: T + ring B♮₃/F♯₅ via correspondence. R3: T + ring B♮₃/F♯₅ via correspondence; cross B♮₃/F♯₅. R4: G♯₃/E♭₅; E₃/B♮₄; F₃/C♮₅; F♯₃/C♯₅; E♭₃. Keymount type: screwed in pillars. Keyhead type: modern.