Ketèlbey is best known for his light orchestral suites, and his piano waltzes are similarly lush and coloristic. This work features rich harmonic textures and a sophisticated approach to the standard waltz form.
Pay close attention to voicing the melody within the lush chordal textures.
Comparable difficulty and character — good candidates for what to learn next.
'Neath Swinging Roses 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 'Neath Swinging Roses lasts about 4.5 minutes.
'Neath Swinging Roses 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 Bells across the Meadows (Characteristic Intermezzo)) by Albert William Ketèlbey, Albumblatt by Aleksandr Glazunov, Boneca Yayá by Oscar Lorenzo Fernández — see the full similar-pieces list on this page.