A quick search using Google has unearthed these titles ...
(a) We'll All Shout (William Broughton) - S. P. & S
(b) In The Army (W. Kitching) - S. P. & S
(c) I've Washed My Robes (W. Stevenson) - S. P. & S.
(d) Duett-Concertino (Rolf Wilhelm) - Trio Musik Edition
(e) Brindisi (Verdi, arr. Bruce Fraser) - Mostyn Music ** Roy Newsome
has also arr. this for cornet/euph.
(f) Hunting High & Low (Simon Kerwin) - Mostyn Music
(g) All I Ask Of You (Andrew Lloyd Webber, arr. Alan Fernie)
(h) Allegro Preciso (E. Siebert)
(i) Capriccio (Gareth Wood)
(j) Duet from Don Giovanni (W. Mozart, arr. H. Lorriman)
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titles g>j available http://www.bandsupplies.co.uk/MusicList.asp?txtSearch=&txtCategory=735&MusicType=1
(k) I'll Gang Nae Mair Tae Yon Toun (Scottish trad. arr. Adrian Drover) - Adios Music
- I'm sure that there are many, many more to find. Hope the list above helps!