diff --git a/CHANGELOG.md b/CHANGELOG.md
index cfdd3750..003234b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,13 +3,15 @@
 * reverse buffer for Player and Sampler.
 * Tone.Volume for simple volume control in Decibels.
 * Panner uses StereoPannerNode when available.
-* AutoFilter effect
+* AutoFilter and Tremolo effects. 
 * Made many attributes read-only. preventing this common type of error: `oscillator.frequency = 200` when it should be `oscillator.frequency.value = 200`.
 * Envelope supports "linear" and "exponential" attack curves. 
 * Renamed Tone.EQ -> Tone.EQ3. 
 * Tone.DrumSynth makes kick and tom sounds.
 * Tone.MidSideCompressor and Tone.MidSideSplit/Tone.MidSideMerge
 * Tone.Oscillator - can specify the number of partials in the type: i.e. "sine10", "triangle3", "square4", etc.
+* mute/unmute the master output: `Tone.Master.mute = true`. 
+* 3 new simplified synths: SimpleSynth, SimpleAM and SimpleFM
 
 ### r4 - Cool is cool