This is a recurring thematic work by Salbert characterized by its meditative quality. It stands out for its introspective approach to contemporary composition.
Focus on bringing out the voice leading while maintaining a consistent, quiet intensity.
Comparable difficulty and character — good candidates for what to learn next.
"Shalom, Luther..." is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 5.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of "Shalom, Luther..." lasts about 4 minutes.
"Shalom, Luther..." is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include "Shalom, Luther..." by Dieter Salbert, "Schwipp, schwapp ... Wasserfloh" by Dieter Salbert, Gymnopédie No. 1 by Erik Satie — see the full similar-pieces list on this page.