This specific setting of Dedication by Robert Alexander is a late-20th-century work focusing on tonal warmth and lyrical expression. The piece is characterized by its simple yet effective harmonic progression and quiet, introspective finish.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: a true singing tone, with the melody floating above the accompaniment; chord voicing — bringing out one note inside a handful of others; and several simultaneous layers, each needing its own dynamic level.
Achieving a seamless legato in the inner voices while the melody projects clearly is the most difficult technical aspect.
Comparable difficulty and character — good candidates for what to learn next.
A level or two down with the same spirit — ideal if this piece is still out of reach.
Where this piece's skills lead: slightly harder works making similar technical demands.
Dedication (Op.206b) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
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 Dedication (Op.206b) lasts about 3 minutes.
Dedication (Op.206b) 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 12 Variations in B-flat major by Wolfgang Amadeus Mozart, Bruyeres by Claude Debussy, Ave Maria d'Arcadelt by Franz Liszt — see the full similar-pieces list on this page.