Recommend me longer works for bass or baritone soloist?

Hi, all!

I am looking for some longer works for a baritone or bass singer. NOT individual songs or arias from operas or oratorios, but coherent single works or (at least) song cycles. Also, not works with a bunch of different soloists of different voice types.

Some examples include:

* Havergal Brian - Symphony no 5 The Wine of Summer (for baritone and orchestra)
* Rued Langgaard - Symphony no 15 The Sea Storm (for bass-baritone, male chorus and orchestra)
* Dmitri Shostakovich - The Execution of Stepan Razin (cantata for bass, chorus and orchestra) (I don't like this, but it still counts as the kind of thing I am seeking)
* Ralph Vaughan Williams - Songs of Travel (for baritone and piano)
* William Walton - Belshazzar's Feast (for baritone, chorus and orchestra)

Also acceptable are recordings by a bass or baritone of works originally written for another voice type. Examples include:

* Hector Berlioz - Les nuits d'été, sung by José van Dam
* Gustav Mahler - Kindertotenlieder, sung by Bryn Terfel

Does anyone have some good recommendations? Thanks!