F7 · Rhythm

Spec: ../F7-rhythm.md · One frame per vocab/meter stage plus the two-voice tier and results. Performance mode by definition.

vocab ladder · one-voice classes
RHYTHM · basics · 1/5PerformanceFP-30X · USB
4/4
♩ = 70 · bar 1 of 2
tap any key on the beat
Basic vocab — quarters, halves, wholes in 4/4 (then 3/4, 2/4). The entry class of the ladder. Four beats, four metronome dots.
RHYTHM · dotted · 2/5PerformanceFP-30X · USB
4/4
♩ = 80 · bar 1 of 2
tap any key on the beat
+ 8ths and dotted figures. Instances generate fresh from the class vocab — never repeated.
RHYTHM · 16ths & syncopation · 3/5PerformanceFP-30X · USB
4/4
♩ = 72 · bar 1 of 2
tap any key on the beat
+ 16ths and syncopation (tied off-beats). The vocab sets nest — everything earlier stays in the pool.
RHYTHM · 6/8 · 4/5PerformanceFP-30X · USB
6/8
♪. = 56 · bar 1 of 2
tap any key on the beat
Compound meters (6/8, later 3/8, 9/8, 12/8). The metronome pulses the dotted-quarter — two dots for the two pulses of the bar; feeling two-in-a-bar is the point.
feel · swing the notation stays straight — the grid moves
RHYTHM · swing · 2/4PerformanceFP-30X · USB
Swing 4/4
♩ = 96 · swing 2:1
tap any key — off-beats land on the swing point
Swing feel. Notated straight, performed long-short: the grader's expected grid moves the off-beat 8ths to the swing point (default 2:1 — the triplet feel; ratio in drill scope). Everything else is unchanged — onsets against the grid, events tagged feel:swing. Admits after straight-8th fluency.
two-voice tier hands independence
RHYTHM · two voices · 3/5PerformanceFP-30X · USB
RH LH
♩ = 66
top line above the mark · bottom line below — any keys in your region
Voice 2 — hands independence. Two simultaneous rhythm lines; admits per vocab set only after the one-voice class is fluent. The lines take disjoint register regions at a split point marked on the keybed — taps assign observably by region; which physical hand played is honor-system, as F9.
results
RHYTHM · resultPerformanceFP-30X · USB
Rhythm
88
Drift
+2
Hear it
Again
Results. Per-onset early/late strip; the amber bars sit on the dotted figures → rhythm:dotted events, which is what makes F7 the standard prescription target when passage rhythm lags.