diff --git a/README.md b/README.md
index 246dbd0..9342325 100644
--- a/README.md
+++ b/README.md
@@ -75,35 +75,4 @@ automatic output filename
 
 input:  star.mp3
 output: star333033.mp3
-</pre>
-
-<pre>
-install helper commands
-./ffx.sh --add-helper-cmd
-
-remove helper commands
-./ffx.sh --remove-helper-cmd
-
-cmd helpers
-  ffbass   INPUT PERCENT [FINE_DB] [OUTPUT]
-  fftreble INPUT PERCENT [FINE_DB] [OUTPUT]
-  ffvolume INPUT DB [OUTPUT]
-  ffdistort INPUT [DRIVE_0_TO_10] [OUTPUT]
-  fftrim   INPUT START_SECONDS [END_SECONDS] [OUTPUT]
-  fftempo  INPUT SPEED_0.125_TO_8 [OUTPUT]
-  ffpitch  INPUT SEMITONES_-36_TO_36 [OUTPUT]
-
-defaults
--output uses the source extension and a unique suffix.
--use an explicit filename ending in .mp3 for mp3 output.
-
-examples
-ffbass "audio.mp3" 33 2
-ffbass "song.wav" 33 2 "bass.mp3"
-fftreble "song.flac" 66 -4 "treble.flac"
-ffvolume "song.mp3" -3
-ffdistort "song.wav" 4 "distorted.mp3"
-fftrim "song.mp3" 12.5 48 "clip.mp3"
-fftempo "song.mp3" 0.5 "slow.mp3"
-ffpitch "song.mp3" -3 "lower.mp3"
-</pre>
+</pre>
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