diff --git a/README.md b/README.md
index 5ba88de..9ee610b 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ A small set of SuperDirt synths and Tidal helpers to control modular synths. No
 d1 $ pitch "0 10 8 1" # scale "<12 31 8>" # x 0
 ```
 
-`pitch` allows a pattern of note values. `scale` sets the amount of notes per octave. The pitch and scale values will be converted to `1v/octave`. Both `pitch` and `scale` can be paternised for some microtonal madness...
+`pitch` allows a pattern of note values. `scale` sets the amount of notes per octave. The pitch and scale values will be converted to `1v/octave`. Both `pitch` and `scale` can be patternised for some microtonal madness...
 
 ### Gate
 
@@ -33,19 +33,17 @@ d3 $ volt "1 0.2 0.5 -0.2" # x 2
 
 ```
 -- create adsr
-d4 $ adsr 0.001 0.2 0.25 1 # x 3
+d4 $ trig "1 ~ 1 1" # adsr 0.001 0.2 0.25 1 # x 3
 ```
 
-![envelope](https://www.dropbox.com/s/rmsxurs03brmsug/envelope.png?raw=1)
-
 ```
 -- patternise adsr
-d5 $ adsr "<0.05 0.9>" "<0 0.4>" 1 1 # x 4
+d5 $ trig "1 ~ 1 1" # adsr (range 0.1 1 sine) "<0 0.4>" 1 1 # x 4
 ```
 
-![patternised envelopes](https://www.dropbox.com/s/qd6kxn22mexpyhq/pattterned-envelopes.png?raw=1)
+`trig` will create a trigger sequence, `adsr` will generate a new envelope for each trigger. Both of these can be patternised.
 
-`adsr` will generate a new envelope per cycle.
+In the second example, the attack time would grow for each triggered envelope over course of the cycle.
 
 ### Clock
 
diff --git a/example.tidal b/example.tidal
index a370624..355a9d3 100644
--- a/example.tidal
+++ b/example.tidal
@@ -8,10 +8,10 @@ d2 $ gate "0 1 0 0 1 1 1" # x 1
 d3 $ volt "1 0.2 0.5 -0.2" # x 2
 
 -- create adsr
-d4 $ adsr 0.001 0.2 0.25 1 # x 3
+d4 $ trig "1 ~ 1 1" # adsr 0.001 0.2 0.25 1 # x 3
 
 -- patternise adsr
-d5 $ adsr "<0.05 0.9>" "<0 0.4>" 1 1 # x 4
+d5 $ trig "1 ~ 1 1" # adsr (range 0.1 1 sine) "<0 0.4>" 1 1 # x 4
 
 -- clock cv output
 d6 $ clock # x 5
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diff --git a/voltage.tidal b/voltage.tidal
index 868725c..d0298b9 100644
--- a/voltage.tidal
+++ b/voltage.tidal
@@ -3,5 +3,6 @@ scale scale = stepsPerOctave scale
 volt volt = rate volt # s "voltage"
 gate = volt
 clock = rate "[1 0]*8" # s "voltage"
-adsr w x y z = n "0" # attack w # decay x # sustain y # release z # s "adsr"
+adsr w x y z = attack w # decay x # sustain y # release z # s "adsr"
+trig trig = n trig
 x x = channel x
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