This is an organ chorale prelude by the Canadian composer Healey Willan transcribed or adapted for piano. It is characterized by lush, late-Romantic harmonic language layered over traditional contrapuntal textures.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: independent voices that must each sing on their own line; a true singing tone, with the melody floating above the accompaniment; and chord voicing — bringing out one note inside a handful of others.
Beyond that, expect precise articulation — the difference between crisp and blurred is the piece.
Maintain a smooth legato line while balancing the melodic chorale theme against the inner moving voices.
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.
Chorale-Prelude No.2 – Andernach 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 Chorale-Prelude No.2 – Andernach lasts about 3 minutes.
Chorale-Prelude No.2 – Andernach 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 Chorale-Prelude No.1 - Puer nobis nascitur by Healey Willan, Chorale-Prelude on "Te Lucis" by Healey Willan, Chorale-Prelude on "Te Lucis", HWC 163 by Healey Willan — see the full similar-pieces list on this page.