Blues Waltz by Colette Mourey is a charming fusion piece that grafts the melancholy melodic phrasing of the blues onto the rhythmic chassis of a traditional waltz. It is distinctive for its seamless blending of triple meter with blue notes.
The technical challenge is maintaining a light, dance-like waltz feel despite the tension of the jazz-influenced harmonies.
Comparable difficulty and character — good candidates for what to learn next.
Blues Waltz is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 4.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 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 Blues Waltz lasts about 3 minutes.
Blues Waltz 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 Memory by Colette Mourey, Blues Waltz - Elegiac Fantasy by Colette Mourey, Ave Maria after J.S. Bach by Colette Mourey — see the full similar-pieces list on this page.