diff --git a/assets/disk0/tvdos/bin/taut.js b/assets/disk0/tvdos/bin/taut.js
index 6b2a926..128fb0e 100644
--- a/assets/disk0/tvdos/bin/taut.js
+++ b/assets/disk0/tvdos/bin/taut.js
@@ -2697,12 +2697,12 @@ function editPatternCell(ptnDat, row, col, ev, popupPos) {
             const raw = openInlineHexEdit(popupPos.y, popupPos.x, 4, cellNote(ptnDat, row))
             if (raw !== null) { const w = raw & 0xFFFF; writeNote(ptnDat, row, w); changed = true; advance = true; if (noteIsPitched(w)) audition = w }
         }
-        // [ / ] unit nudge (no shift); { / } octave nudge (Shift+[ / Shift+])
-        else if (!shiftDown && (sc === keys.LEFT_BRACKET || sc === keys.RIGHT_BRACKET)) {
+        // [ / ] octave nudge; { / } unit nudge (Shift+[ / Shift+])
+        else if (shiftDown && (sc === keys.LEFT_BRACKET || sc === keys.RIGHT_BRACKET)) {
             const cur = cellNote(ptnDat, row)
             if (noteIsPitched(cur)) { const n = nudgeNoteUnit(cur, sc === keys.LEFT_BRACKET ? -1 : 1); writeNote(ptnDat, row, n); changed = true; audition = n }
         }
-        else if (shiftDown && (sc === keys.LEFT_BRACKET || sc === keys.RIGHT_BRACKET)) {
+        else if (!shiftDown && (sc === keys.LEFT_BRACKET || sc === keys.RIGHT_BRACKET)) {
             const dir = (sc === keys.LEFT_BRACKET) ? -1 : 1
             const cur = cellNote(ptnDat, row)
             if (noteIsPitched(cur)) { const n = nudgeNoteOctave(cur, dir); writeNote(ptnDat, row, n); editOctave = decomposeNote(n, pitchTablePresets[PITCH_PRESET_IDX].interval)[0]; changed = true; audition = n }
diff --git a/assets/disk0/tvdos/bin/taut_helpmsg.mjs b/assets/disk0/tvdos/bin/taut_helpmsg.mjs
index 567762f..6fd58cf 100644
--- a/assets/disk0/tvdos/bin/taut_helpmsg.mjs
+++ b/assets/disk0/tvdos/bin/taut_helpmsg.mjs
@@ -111,8 +111,8 @@ Timeline has two distinct modes: view and edit mode. Two modes are toggled using
 <b>&nbsp;EDIT MODE</b>
 <b>\u00B7${'\u00B8'.repeat(9)}\u00B9</b>
 &bul;Note jamming : <O>(note column) inserts the note</O>
-&bul;<b>{</b>&mdot;<b>}</b> : <O>(note column) lowers/raises a note by one octave (or period)</O>
-&bul;<b>[</b>&mdot;<b>]</b> : <O>(note column) lowers/raises a note by one unit</O>
+&bul;<b>[</b>&mdot;<b>]</b> : <O>(note column) lowers/raises a note by one octave (or period)</O>
+&bul;<b>{</b>&mdot;<b>}</b> : <O>(note column) lowers/raises a note by one unit</O>
 &bul;<b>z</b> : <O>(note column) inserts a key-off &keyoffsym;</O>
 &bul;<b>x</b> : <O>(note column) inserts a note-cut &notecutsym;</O>
 &bul;<b>c</b> : <O>(note column) inserts a note fade &notefadesym;</O>