William Byrd's Fantasia No. 261 is a masterwork of Elizabethan keyboard polyphony, exhibiting complex fugal imitation. It stands out for its structural density and the sophisticated use of rhythmic displacements.
At Henle 6 this is an advanced piece that assumes fluent technique and rewards mature interpretation. The main demands: independent voices that must each sing on their own line; ornaments that need to sound effortless, not squeezed in; and fine finger independence within the hand.
Beyond that, expect precise articulation — the difference between crisp and blurred is the piece, and chord voicing — bringing out one note inside a handful of others.
The technical demand lies in the rigorous finger-independence required to sustain the various polyphonic strands throughout the piece.
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.
Lesser-known works by the same hand, at a comparable level.
Fantasia, FVB 261 is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 Fantasia, FVB 261 lasts about 5 minutes.
Fantasia, FVB 261 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 Fantasia, FWB CCLXI by William Byrd, Fantasia, BK 63 by William Byrd, Fantasia, FVB 103 by William Byrd — see the full similar-pieces list on this page.