Please, please, please let us put Rachmaninoff in the pre-1900 thread, where he belongs musically, rather than the 20th century.
Concerti #2 & 3
Symphony #2
Paganini Rhapsody
So-called “Vespers”
About a disk worth of solo piano & chamber pieces
19/20th Century British composers
Elgar - Enigma variations, Cello Concerto.
Holst - Planets Suite
Vaughan Williams - Symphonies 3, 5, 6, 7, Fantasia on a Theme by Thomas Tallis, The Lark Ascending, Five Variants on Dives and Lazurus, English Folk Song Suite.
Moeran - Symphony in E
Bax - Tintagel, at least one of his piano concertos