Bass cavalry valve trombone. Nominal pitch: B♭ + F.

D. & P. Le Brun
https://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~78193~183452/full/150,/0/default.jpghttps://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~78526~183451/full/,150/0/default.jpg

Instrument

Bass trombone

Instrument Family

Wind

Maker

D. & P. Le Brun

Place Made

Belgium; Europe; Brussels; Central Europe

Date Made

Circa 1919

Description

Système Eugène Detiège (independent valves plus F valve). Technical description: Brass; angled (cavalry) layout; trigger action intonation slide with spring return for R0 on 7th valve tubing. Adjustable rest for left hand; finger ring for R4. The 7th valve gives the normal lowering of a 4th; the intonation slide needs to be fully lifted for B♭-F change and fully lowered for E-B. Valve type: 6 independent pistons, bottom sprung, in usual two groups of three for R1, R2, R3, L1, L2, L3; very long Périnet valve, top sprung, in main windway for L4. Overall size: Length along valve section 630; length along bell section 705; bell diameter 186. Sounding length: minimum 2626. Bore: at c 60mm from mouthpiece receiver (minimum bore), 10.3; expanding by 100mm from mouthpiece receiver to bore c 10.8; distance to main tuning slide on valve section c 550, m.t.s. bore 11.9 - 12.2; v.t.s. (7, 1...6, 6...1), bore 12.2; main tuning slide on bell section 14.4 - 17.6; at c 633mm from bell end, 17.1. at 24.3mm from bell end, 102.7. B = 0.64. Bell cutoff = 900 Hz. Dia of mouthpiece receiver: m.r.t. 11.8 - 11.0. Inscribed on bell "MEDAILLES D'OR" within banner / "D. & P. LEBRUN / BREVETÉ / R. DE LA PRÉVOYANCE 23 / BRUXELLES". General literature references: Bate 1978, p.184 5; Forsyth 1926, pp.144 146; Geiringer 1943, Plate LXIV; Haine and Meeùs 1986, pp.249 250; Wood 1938, p.326. Performance characteristics: Free-blowing. Usable pitch: A⁴ = 435 - 439 Hz. Specific literature references: Sotheby's auction catalogue 4.12.91, describes this instrument (lot 140) and two similar trombones with narrower bore bell sections; possibly these are three of the set of four trombones Detiège imported by Sir Henry Wood (Wood 1938, p.326). Illustration references: Sotheby's auction catalogue 4.12.91, lot 140.

Notes

A. Myers, March 1993; R. Parks, 25.1.92, 7.11.98.

Measurements

Length along valve section 630; length along bell section 705; bell diameter 186.

Provenance

on loan to the Collection.

Collection

MIMEd

Accession Number

3219

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