notes: keep the kick headline honest (boxy 60-250 Hz, analyser cross-check)

armada/tide-table/performance_notes.md

@@ -875,7 +875,7 @@ video (`REC-20260928-215506-screen.mp4`; the master sits at +3.80 s in it).
   bucket hump at 3.15 kHz. Hypothesis, not confirmed: the slice/`n` variant changed (^56 sets `n 90`).
   (First draft of this entry said "7-10 dB hotter, total moves 2 dB, 85-100%": loose, corrected.)
 - **d1 (kick, sample `jazz`): "super tame, needs sound design".** Measured (222 hits, 73-210 s):
-  fundamental ~64 Hz, solid 40-100 Hz, nothing under 35 Hz (-26 dB at 20-40 Hz), nothing above 1 kHz
+  mean-spectrum peak bin 64 Hz (the sample analyser puts the energy centre at ~150 Hz, 80% in 80-250 Hz: a boxy 60-250 Hz thump), nothing under 35 Hz (-26 dB at 20-40 Hz), nothing above 1 kHz
   (-62 dB at 1-2 kHz): no beater click, so no attack transient. -20 dB at 119 ms. Peak level is not
   the problem (+4.4 dBFS in the float stem; 131 of 222 hits (59%) at that identical level, 163 above
   0 dBFS, 7 distinct levels). Others do not mask it (d1 owns a median 94% of 30-120 Hz and 59% of