Despite publication of revised editions of orchestral repertoire, many scores and parts still contain significant errors. Norman del Mar's Orchestral Variations (Eulenburg, London, 1981), studies 45 works: newer editions have made some chapters obsolete (e.g. Jonathan del Mar's edition of Beethoven symphonies); most remain valid. Some works, e.g. Debussy, Prélude à L'Après-midi d'un faune) are treated thoroughly in the US Conductors Guild Journal. The list below contains errors found during preparation and rehearsals for concerts. Inquries and contributions are most welcome via the Contact form.  Please give details of edition and your contact details. A credit and link will be given here for verified contributions.

Boïeldieu, Overture: Le Calife de Bagdad
Two trumpet parts (in A) supplied with the Kalmus set, reinforcing in tutti sections only. Absent from both Kalmus full score A1330 and Eulenberg miniature EE3791/Nr.1105.169 / 171 / 173 / 175: bassoon and lower strings: Kalmus / Eulenberg scores have q. e q  q  rhythm; parts: q. eq. e
243: Scores: strings have crochet rest on 2nd beat. Parts: play as per 3rd and 4th beats.

Britten, Four Sea Interludes: Peter Grimes
Trombones 1-3 missing from instrumentation list of HPS 83, but required in score and listed on first page of music.

Bruch, Violin Concerto No.1
3rd mvt: 'Cello: 2 before H. Erroneous pizz. marking: ignore and play arco. Correct in score.

Chabrier, España
18 before [N]: Double Bass error in part: first C should be q  not   e 
(correct in score).

Debussy, Marche écossaise
5-6 after [10]: Vln 1: Slur from first quaver of [10]+5 to first quaver of [10]+6 not in parts. In Editions Jobert score E.1410 F.7 after [12]: Parts: Vln 1 Gn  should be G#. Correct in score.

Dvořák, Symphony No.6
I
10 after [B], bar 117: bassoon 1 part. Natural missing from C quaver.
8 after [C], bar 147: bassoon parts. # missing from first quaver D.

Dvořák, Te Deum
2 before [W]: bassoon 2. Written A-natural should read A-flat.

Elgar, Serenade for Strings
II.
Bar 19 [3 after I]. First violin part: semi-quaver beam missing between F and E on third quaver.

Elgar, Symphony No.1
III.
1 before 100, bar 63: bassoon 1: should read tenor clef in part (correct in score and bassoon 2). 4 after 100: bass clef (correct in bassoon 1 part).

de Falla, Suite No1: 'Escenas y Danzas', El sombrero de tres picos
Bar 76 [2 before 15]: Viola: always E# and F natural through to bar 79 (as per full score Chester CH 61761 (2001).

de Falla, Suite No.2: El sombrero de tres picos
Source: CH 61762 (Chester Music, 2001). Errors cited in del Mar, Conducting Favourite Concert Pieces (Oxford, 1998), pp.100-113), are corrected in the 2001 Chester score and parts.
II. Danza de Molinero (Farucca)
Bar 23: Horn 1 (in F) part should read F# q  - B h. 

Franck, Le Chasseur maudit
Bar 151 (5 before E), 2nd/3rd beat: 2nd horn printed A#. Should read F#, like 1st horn part. Correct in score E.E. 3684 / Eulenburg 514.
Bar 273 (Molto lento): 1st 'cello line missing from part until Plus animé / Più animato before N. Correct in score E.E. 3684.
Bar 296 (7 after L), minim on 2nd beat: Tbn 3 and Tba have B-flat in parts. Should read B-natural. Correct in score E.E. 3684).
Letter O (bar 333) printed five bars too early in double bass part.

F.J. Haydn, The Creation
Part II: Aria: 'On Mighty Pens ...', b.173: Vc / Db part: first note E, not G
Part III: Duet and Chorus: 'By thee, with bliss ...', b.359: Vc / Db part: last semiquaver C, not D
Part III: Final Chorus:, b.36: Vc / Db part: first note quaver G, not E-flat
(All correct in Peters full score 5453 and New Novello vocal score.)
With thanks to Robin de Smet.

Janáček, Sinfonietta
Source: UE 8680. / W. Ph. V.224II.
[4]. Delete violin 1 and 2 and viola dotted crotchet. Rests instead.5 after [8]: bar 130. Trombone 1: E instead of D.2 before [9]: bar 134. Trombone 1: final e C instead of A-flat. Trombone 2 is correct.
9 after [12]: bar 195 (both times): no slurs in oboes / clarinets.III.
4 before [4]: bar 42. Con moto: should read crotchet = 132, not minim = 100. Peters ed. has, also incorrectly, crotchet = 100.7 and 8 after [4]: bars 49/50. Peters ed. reverses trombone 1 and 2 parts.5 after [7]: bar 94. 'Camp.'. No pitch in UE 8680. Should be tuned in E-flat.11 after [7]: bar 100. Tuba should play low A-flat e on 1st beat. Cf. bar 79.5 after [7]. Delete più mosso marking.IV.
8 and 9 after [8]: bars 140-41. Oboe part missing from score: should be D-flat - E-flat crotchet (140), tied to E-flat minim (141).V. 5 after [4]: bar 63. Peters edition has, incorrectly, e = 69, instead of crotchet = 69. (Correct in UE 8680).3 after [5]: bar 87. Delete double bass F crotchet. Should be rest, with double bass entering as printed in 88.2 after [8]: bar 116. Cymbal printed one bar too early: should play in 117 instead.[9]: Score: tempo marked crotchet = 92. Should read =  72.5 before [11]: Score: Allegro tempo marked dotted minim = 72. Should read dotted crotchet.

Janáček, Žárlivost (Jealousy)
Bars 27-28:UE 34803has major difference with score and parts H.3932a (1964), not noted in critical commentary. The latter repeats the rhythmic figure of 23-24 up a semitone, although retaining the C#.
Bar 165: UE 34803 score. Should read 1st bassoon, not 2nd.

Leoncavallo, Pagliacci
in preparation

Maxwell Davies, An Orkney Wedding, with Sunrise
Bar 285: Violin 2 (solo) part written h  | Crotchet missing: should read:h.  |
Correct in score (Boosey and Hawkes HPS 1119 / B & H 20778).

Mozart, Overture: Le nozze di Figaro, K.492
Eulenberg E.E.3703 / Nr. 603: Bar 293: minim rest missing in second violin.

Mussorgsky (orch. Ravel), Pictures at an Exhibition
Flute 3/ Piccolo:
Baba-Yaga (page 6): 1 bar before 88 to 90. Marked 3rd flute; should read piccolo.
Great Gate of Kiev (page 7): 4th of 104. Marked piccolo; should read 3rd flute. Instruction to change to piccolo given correctly at 106, prior to 107.

Poulenc, Concert champêtre
[28]: 3 bars of the harpsichord solo part are missing from the full score.

Rachmaninov, Symphonic Dances, op.45
I. 2 before [9]: Triangle part. Third beat (second printed note): misprinted as crotchet; should be quaver. Correct in score (Boosey and Hawkes 05802).

Respighi, The Pines of Rome / Pini di Roma
II. 2/4 Horn parts: first three lines should be bass clef instead of printed treble clef.

Rimsky-Korsakov, Capriccio espagnol
II. 21 before [F]: 'Cello parts: 1st quaver misprinted as A natural. Should read C.IV.10 after [O]: 'Cello parts: arco missing.V.
5 before [Z]: Violin 2 parts: n  missing before first (acro) G.

Rimsky-Korsakov, Christmas Eve Suite
Bassoon 2: 6 after [169]: D# in part should read D natural (correct in full score H & Cie. 9077).
Note misnumbering of pages in several orchestral parts, e.g. no p.12 in Violin I.

Sibelius, En Saga
Full score (Breitkopf und Härtel no.1786) instrumentation states three percussion players: only two required.

Sibelius, Symphony No.1
IV. [O]+8: Violins: final quaver misprinted in parts as G; should read F#.

Sibelius, Violin Concerto
III. Bars 10-11: Double bass: bar line in 10 printed one beat too early, making bar 10 as 2/4 then bar 11 as 4/4. Overall, the part has the correct number of beats.

Schoenberg, Pierrot Lunaire
Piccolo part: No.3, Der Dandy: bar 26. Minim rest printed on 4th beat instead of crotchet. Correct in full score.

Richard Strauss, Salome’s Dance
Full Score: Boosey and Hawkes no.16146: reduced orchestra version:
p.6 (bar 54; 3 after E): ’cello: should read low E (like double bass), not D.
p.16: trombones 2,3: & printed; should be ? .
p.17: trombones: should read 2,3; not 1,2.
p.21 (bar 114): violin 1 and 2: should be semi-quaver on third beat, not quaver (c.f. top viola line).
p.47 (bar 255): should solo viola and solo ’cello continue A harmonic during this bar? (c.f. original full orchestra version).

R. Strauss, Suite: Der Rosenkavalier
Study score: Boosey and Hawkes 9070:
pp.6-8: bass clarinet in B-flat, not in A as designated. (Key signature is correct).
p.33: 2nd violins: one bar too many before pause at [26].
p.38: 4 after [30] / bar 193. Marked minim = 48; should read dotted minim = 48.
pp.53-4 (4-5 after [47]; bars 394-95): should tuba have low E dotted minims?p.56: [49] - 2 and 1 (bars 410 / 411): cor anglais: error in full score. Check also with 1st and 2nd bassoon parts.
p.57: 1 after [50] (bar 422): 1st violin (solo line): printing error. Minim ‘A’ instead of semi-breve.

Stravinsky, L'Histoire du soldat
Marche royale
Bar 19: clarinet. Written C (sounding B-flat) on 4th quaver printed as semi-quaver. Should be quaver.
Bar 77: violin. 3/8 missing.
Bar 125: violin. Crotchet rest and three quavers printed. Should be crotchet rest, then two semi-quavers, then quaver.Petit Concert
Bar 49: percussion. 3/4 printed. Should be 3/8.
Bar 70: clarinet. Rehearsal no.[16] printed at 70, two bars early. Should be at bar 72.
Danse du diable
Bar 23: score. Violin and Double bass designations printed wrong way around.
Grand choral
Beginning: clarinet part in Concert Suite version not marked as in A.Tchaikovsky, Eugene Onegin

Schauer & May edition, 1971: vocal score (S & M 153).No.9 (Letter Scene), p.80, bar 8 vocal line: B-naturals instead of flats.

Tchaikovsky, Swan Lake Suite, op.20
Eulenberg No.1336 and Kalmus score and parts contain different movements:
Eulenberg                                   Kalmus
I.   Scène Act II start                    ditto
II.  Waltz Act I/2                           ditto
III.  Dance of the Swans               
     Act II 13-4
IV. Scène: Pas d'action               
     Act II 13-5
V.  Czardas Act III/20                  
VI. Scène: Act IV/28 and             
     1st 26 bars of finale IV/29       
VII.                                            
VIII.                                            Mazurka

Tchaikovsky, Symphony No.6, 1st movement
B & H 4959. Bar 308. 5 before S, 2nd crotchet. Oboe 2 part misprint: D-flat should read D# as per full score and Oboe 1 part.

Tchaikovsky, Symphony No.6, 4th movement
Bar 39 [C]: Violin 1 and 2: 'lenezza': B & H score and parts. No such Italian word. Possible mis-spelling of 'lentezza'.
B & H 4959. Bar 75: Clarinet 1 part: articulation misprint. Delete tie over first two quavers. Correct in score.

Tchaikovsky, Violin Concerto
Third Movement, bar 467: 'Cello part (Breitkopf und Härtel OB4957): chords misprinted on the beat; should play off-beat (as per other string parts). Correct in scores (B and H 4957 and Gosudarstvennoe Muzykal'noe Izdatel'stvo, Moscow & St. Petersburg, ed. Valentina Rackovskaya, pub.1949).