diff --git a/release-packaging/Classes/FluidBufMelBands.sc b/release-packaging/Classes/FluidBufMelBands.sc
index b11ffb7..469689e 100644
--- a/release-packaging/Classes/FluidBufMelBands.sc
+++ b/release-packaging/Classes/FluidBufMelBands.sc
@@ -1,6 +1,6 @@
 FluidBufMelBands : FluidBufProcessor {
 
-    *kr  { |source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  numBands = 40, minFreq = 20, maxFreq = 20000, normalize = 1, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, trig = 1, blocking = 0|
+    *kr  { |source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  numBands = 40, minFreq = 20, maxFreq = 20000, normalize = 1, scale = 0, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, trig = 1, blocking = 0|
 
         var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
 
@@ -11,10 +11,10 @@ FluidBufMelBands : FluidBufProcessor {
         features.isNil.if {"FluidBufMelBands:  Invalid features buffer".throw};
 
 
-		^FluidProxyUgen.kr(\FluidBufMelBandsTrigger,-1, source, startFrame, numFrames, startChan, numChans, features, padding, numBands, minFreq, maxFreq, numBands, normalize, windowSize, hopSize, fftSize, maxFFTSize, trig, blocking);
+		^FluidProxyUgen.kr(\FluidBufMelBandsTrigger,-1, source, startFrame, numFrames, startChan, numChans, features, padding, numBands, minFreq, maxFreq, numBands, normalize, scale, windowSize, hopSize, fftSize, maxFFTSize, trig, blocking);
 	}
 
-    *process { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  numBands = 40, minFreq = 20, maxFreq = 20000, normalize = 1, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone = true, action|
+    *process { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  numBands = 40, minFreq = 20, maxFreq = 20000, normalize = 1, scale = 0,  windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone = true, action|
 
         var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
 
@@ -27,11 +27,11 @@ FluidBufMelBands : FluidBufProcessor {
 		^this.new(
 			server, nil, [features]
 		).processList(
-			[source, startFrame, numFrames, startChan, numChans, features, padding, numBands, minFreq, maxFreq, numBands, normalize, windowSize, hopSize, fftSize, maxFFTSize, 0],freeWhenDone,action
+			[source, startFrame, numFrames, startChan, numChans, features, padding, numBands, minFreq, maxFreq, numBands, normalize, scale, windowSize, hopSize, fftSize, maxFFTSize, 0],freeWhenDone,action
         );
 	}
 
-    *processBlocking { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  numBands = 40, minFreq = 20, maxFreq = 20000, normalize = 1, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone = true, action|
+    *processBlocking { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  numBands = 40, minFreq = 20, maxFreq = 20000, normalize = 1, scale = 0,  windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone = true, action|
 
         var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
 
@@ -44,7 +44,7 @@ FluidBufMelBands : FluidBufProcessor {
 		^this.new(
 			server, nil, [features]
 		).processList(
-			[source, startFrame, numFrames, startChan, numChans, features, padding, numBands, minFreq, maxFreq, numBands, normalize, windowSize, hopSize, fftSize, maxFFTSize, 1],freeWhenDone,action
+			[source, startFrame, numFrames, startChan, numChans, features, padding, numBands, minFreq, maxFreq, numBands, normalize, scale, windowSize, hopSize, fftSize, maxFFTSize, 1],freeWhenDone,action
         );
 	}
 }
diff --git a/release-packaging/Classes/FluidBufSpectralShape.sc b/release-packaging/Classes/FluidBufSpectralShape.sc
index b4bb4ab..dff727f 100644
--- a/release-packaging/Classes/FluidBufSpectralShape.sc
+++ b/release-packaging/Classes/FluidBufSpectralShape.sc
@@ -4,7 +4,7 @@ FluidBufSpectralShape : FluidBufProcessor {
         ^\FluidBufSpecShp
     }
 
-    *kr { |source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, trig = 1, blocking = 0|
+    *kr { |source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, minFreq = 0, maxFreq = -1, rolloffPercent = 0.95, unit = 0, power = 0, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, trig = 1, blocking = 0|
 
 		var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
 
@@ -14,11 +14,11 @@ FluidBufSpectralShape : FluidBufProcessor {
 		source.isNil.if {"FluidBufSpectralShape:  Invalid source buffer".throw};
 		features.isNil.if {"FluidBufSpectralShape:  Invalid features buffer".throw};
 
-		^FluidProxyUgen.kr(this.objectClassName++\Trigger, -1, source, startFrame, numFrames, startChan, numChans, features, padding, windowSize, hopSize, fftSize, maxFFTSize, trig, blocking);
+		^FluidProxyUgen.kr(this.objectClassName++\Trigger, -1, source, startFrame, numFrames, startChan, numChans, features, padding, minFreq, maxFreq, rolloffPercent, unit, power, windowSize, hopSize, fftSize, maxFFTSize, trig, blocking);
 
 	}
 
-    *process { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone = true, action|
+    *process { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, minFreq = 0, maxFreq = -1, rolloffPercent = 0.95, unit = 0, power = 0, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone = true, action|
 
 		var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
 
@@ -31,11 +31,11 @@ FluidBufSpectralShape : FluidBufProcessor {
 		^this.new(
 			server, nil, [features]
 		).processList(
-			 [source, startFrame, numFrames, startChan, numChans, features, padding, windowSize, hopSize, fftSize, maxFFTSize, 0], freeWhenDone, action
+			 [source, startFrame, numFrames, startChan, numChans, features, padding, minFreq, maxFreq, rolloffPercent, unit, power, windowSize, hopSize, fftSize, maxFFTSize, 0], freeWhenDone, action
 		);
 	}
 
-    *processBlocking { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone = true, action|
+    *processBlocking { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, minFreq = 0, maxFreq = -1, rolloffPercent = 0.95, unit = 0, power = 0, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone = true, action|
 
 		var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
 
@@ -48,7 +48,7 @@ FluidBufSpectralShape : FluidBufProcessor {
 		^this.new(
 			server, nil, [features]
 		).processList(
-			 [source, startFrame, numFrames, startChan, numChans, features, padding, windowSize, hopSize, fftSize, maxFFTSize, 1], freeWhenDone, action
+			 [source, startFrame, numFrames, startChan, numChans, features, padding, minFreq, maxFreq, rolloffPercent, unit, power, windowSize, hopSize, fftSize, maxFFTSize, 1], freeWhenDone, action
 		);
 	}
 }
diff --git a/release-packaging/Classes/FluidMelBands.sc b/release-packaging/Classes/FluidMelBands.sc
index 12ee90d..418189b 100644
--- a/release-packaging/Classes/FluidMelBands.sc
+++ b/release-packaging/Classes/FluidMelBands.sc
@@ -1,7 +1,7 @@
 FluidMelBands : FluidRTMultiOutUGen {
 
-	*kr { arg in = 0, numBands = 40, minFreq = 20, maxFreq = 20000, maxNumBands = 120, normalize = 1, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384;
-		^this.multiNew('control', in.asAudioRateInput(this), numBands, minFreq, maxFreq, maxNumBands, normalize, windowSize, hopSize, fftSize, maxFFTSize);
+	*kr { arg in = 0, numBands = 40, minFreq = 20, maxFreq = 20000, maxNumBands = 120, normalize = 1, scale = 0, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384;
+		^this.multiNew('control', in.asAudioRateInput(this), numBands, minFreq, maxFreq, maxNumBands, normalize, scale, windowSize, hopSize, fftSize, maxFFTSize);
 	}
 
 	init {arg ...theInputs;
@@ -13,7 +13,7 @@ FluidMelBands : FluidRTMultiOutUGen {
 		if(inputs.at(4).rate != 'scalar') {
 			^(": maxNumBands cannot be modulated.");
 		};
-		if(inputs.at(8).rate != 'scalar') {
+		if(inputs.at(10).rate != 'scalar') {
 			^(": maxFFTSize cannot be modulated.");
 		};^this.checkValidInputs;
 	}
diff --git a/release-packaging/Classes/FluidSpectralShape.sc b/release-packaging/Classes/FluidSpectralShape.sc
index 1a3fa2d..3dc1267 100644
--- a/release-packaging/Classes/FluidSpectralShape.sc
+++ b/release-packaging/Classes/FluidSpectralShape.sc
@@ -1,7 +1,7 @@
 FluidSpectralShape : FluidRTMultiOutUGen {
 
-	*kr { arg in = 0, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384;
-		^this.multiNew('control', in.asAudioRateInput(this), windowSize, hopSize, fftSize, maxFFTSize);
+	*kr { arg in = 0, minFreq = 0, maxFreq = -1, rolloffPercent = 0.95, unit = 0, power = 0, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384;
+		^this.multiNew('control', in.asAudioRateInput(this), minFreq, maxFreq, rolloffPercent, unit, power, windowSize, hopSize, fftSize, maxFFTSize);
 	}
 
 	init {arg ...theInputs;
@@ -10,7 +10,7 @@ FluidSpectralShape : FluidRTMultiOutUGen {
 	}
 
 	checkInputs {
-		if(inputs.at(4).rate != 'scalar') {
+		if(inputs.at(9).rate != 'scalar') {
 			^(": maxFFTSize cannot be modulated.");
 			};
 		^this.checkValidInputs;
diff --git a/release-packaging/HelpSource/Classes/FluidBufMelBands.schelp b/release-packaging/HelpSource/Classes/FluidBufMelBands.schelp
index 9d15d33..c19767c 100644
--- a/release-packaging/HelpSource/Classes/FluidBufMelBands.schelp
+++ b/release-packaging/HelpSource/Classes/FluidBufMelBands.schelp
@@ -51,6 +51,9 @@ ARGUMENT:: maxFreq
 ARGUMENT:: normalize
 	This flag enables the scaling of the output to preserve the energy of the window. It is on (1) by default.
 
+ARGUMENT:: scale
+	This flag sets the scaling of the output value. It is either linear (0, by default) or in dB (1).
+
 ARGUMENT:: windowSize
 	The window size. As spectral description relies on spectral frames, we need to decide what precision we give it spectrally and temporally, in line with Gabor Uncertainty principles. http://www.subsurfwiki.org/wiki/Gabor_uncertainty
 
diff --git a/release-packaging/HelpSource/Classes/FluidBufPitch.schelp b/release-packaging/HelpSource/Classes/FluidBufPitch.schelp
index f2352ea..ad939f6 100644
--- a/release-packaging/HelpSource/Classes/FluidBufPitch.schelp
+++ b/release-packaging/HelpSource/Classes/FluidBufPitch.schelp
@@ -7,7 +7,7 @@ RELATED:: Guides/FluCoMa, Guides/FluidDecomposition, Guides/FluidBufMultiThreadi
 DESCRIPTION::
 This class implements three popular pitch descriptors, computed as frequency and the confidence in its value. It is part of the LINK:: Guides/FluidDecomposition:: of LINK:: Guides/FluCoMa::. For more explanations, learning material, and discussions on its musicianly uses, visit http://www.flucoma.org/
 
-The process will return a multichannel buffer with two channels per input channel, one for pitch and one for the pitch tracking confidence. Each sample represents a value, which is every hopSize. Its sampling rate is sourceSR / hopSize.
+The process will return a multichannel buffer with two channels per input channel, one for pitch and one for the pitch tracking confidence. A pitch of 0 is yield when the algorithm cannot find a fundamental at all. Each sample represents a value, which is every hopSize. Its sampling rate is sourceSR / hopSize.
 
 STRONG::Threading::
 
diff --git a/release-packaging/HelpSource/Classes/FluidBufSpectralShape.schelp b/release-packaging/HelpSource/Classes/FluidBufSpectralShape.schelp
index 9561cc6..02ea6ae 100644
--- a/release-packaging/HelpSource/Classes/FluidBufSpectralShape.schelp
+++ b/release-packaging/HelpSource/Classes/FluidBufSpectralShape.schelp
@@ -55,6 +55,21 @@ ARGUMENT:: numChans
 ARGUMENT:: features
 	The destination buffer for the 7 spectral features describing the spectral shape.
 
+ARGUMENT:: minFreq
+	The minimum frequency that the algorithm will consider for computing the spectral shape. Frequencies below will be ignored. The default of 0 goes down to DC when possible.
+
+ARGUMENT:: maxFreq
+	The maximum frequency that the algorithm will consider for computing the spectral shape. Frequencies above will be ignored. The default of -1 goes up to Nyquist.
+
+ARGUMENT:: rolloffPercent
+	This sets the percentage of the frame's energy that will be reported as the rolloff frequency. The default is 95%.
+
+ARGUMENT:: unit
+	The frequency unit for the spectral shapes to be computed upon, and outputted at. The default (0) is in Hertz and computes the moments on a linear spectrum. The alternative is in MIDI note numbers(1), which compute the momontes on an exponential spectrum.
+
+ARGUMENT:: power
+	This flag sets the scaling of the magnitudes in the moment calculation. It uses either its amplitude (0, by default) or its power (1).
+
 ARGUMENT:: windowSize
 	The window size. As spectral shape estimation relies on spectral frames, we need to decide what precision we give it spectrally and temporally, in line with Gabor Uncertainty principles. http://www.subsurfwiki.org/wiki/Gabor_uncertainty
 
diff --git a/release-packaging/HelpSource/Classes/FluidMelBands.schelp b/release-packaging/HelpSource/Classes/FluidMelBands.schelp
index 3eca271..5981620 100644
--- a/release-packaging/HelpSource/Classes/FluidMelBands.schelp
+++ b/release-packaging/HelpSource/Classes/FluidMelBands.schelp
@@ -31,6 +31,9 @@ ARGUMENT:: maxNumBands
 ARGUMENT:: normalize
 	This flag enables the scaling of the output to preserve the energy of the window. It is on (1) by default.
 
+ARGUMENT:: scale
+	This flag sets the scaling of the output value. It is either linear (0, by default) or in dB (1).
+
 ARGUMENT:: windowSize
 	The window size. As sinusoidal estimation relies on spectral frames, we need to decide what precision we give it spectrally and temporally, in line with Gabor Uncertainty principles. http://www.subsurfwiki.org/wiki/Gabor_uncertainty
 
diff --git a/release-packaging/HelpSource/Classes/FluidPitch.schelp b/release-packaging/HelpSource/Classes/FluidPitch.schelp
index d442f0f..6f5a46f 100644
--- a/release-packaging/HelpSource/Classes/FluidPitch.schelp
+++ b/release-packaging/HelpSource/Classes/FluidPitch.schelp
@@ -6,7 +6,7 @@ RELATED:: Guides/FluCoMa, Guides/FluidDecomposition, Classes/Pitch
 DESCRIPTION::
 This class implements three popular pitch descriptors, computed as frequency and the confidence in its value. It is part of the LINK:: Guides/FluidDecomposition:: of LINK:: Guides/FluCoMa::. For more explanations, learning material, and discussions on its musicianly uses, visit http://www.flucoma.org/
 
-The process will return a multichannel control steam with [pitch, confidence] values, which will be repeated if no change happens within the algorithm, i.e. when the hopSize is larger than the server's kr period.
+The process will return a multichannel control steam with [pitch, confidence] values, which will be repeated if no change happens within the algorithm, i.e. when the hopSize is larger than the server's kr period. A pitch of 0 is yield when the algorithm cannot find a fundamental at all.
 
 CLASSMETHODS::
 
diff --git a/release-packaging/HelpSource/Classes/FluidSpectralShape.schelp b/release-packaging/HelpSource/Classes/FluidSpectralShape.schelp
index 8a918f7..8a1ca28 100644
--- a/release-packaging/HelpSource/Classes/FluidSpectralShape.schelp
+++ b/release-packaging/HelpSource/Classes/FluidSpectralShape.schelp
@@ -15,7 +15,7 @@ LIST::
 	## the normalised skewness (3) as ratio. This indicates how tilted is the spectral curve in relation to the middle of the spectral frame, i.e. half of the Nyquist frequency. If it is below that frequency, i.e. the central bin of the magnitude spectrum, it is positive.
 	## the normalised kurtosis (4) as ratio. This indicates how focused is the spectral curve. If it is peaky, it is high.
 	::
-	## the rolloff (5) in Hz. This indicates the frequency under which 95% of the energy is included.
+	## the rolloff (5) in Hz. This indicates the frequency under which code::rolloffPercent:: of the energy is included. The default is 95%.
 	## the flatness (6) in dB. This is the ratio of geometric mean of the magnitude, over the arithmetic mean of the magnitudes. It yields a very approximate measure on how noisy a signal is.
 	## the crest (7) in dB. This is the ratio of the loudest magnitude over the RMS of the whole frame. A high number is an indication of a loud peak poking out from the overal spectral curve.
 
@@ -32,6 +32,21 @@ METHOD:: kr
 ARGUMENT:: in
 	The audio to be processed.
 
+ARGUMENT:: minFreq
+	The minimum frequency that the algorithm will consider for computing the spectral shape. Frequencies below will be ignored. The default of 0 goes down to DC when possible.
+
+ARGUMENT:: maxFreq
+	The maximum frequency that the algorithm will consider for computing the spectral shape. Frequencies above will be ignored. The default of -1 goes up to Nyquist.
+
+ARGUMENT:: rolloffPercent
+	This sets the percentage of the frame's energy that will be reported as the rolloff frequency. The default is 95%.
+
+ARGUMENT:: unit
+	The frequency unit for the spectral shapes to be computed upon, and outputted at. The default (0) is in Hertz and computes the moments on a linear spectrum. The alternative is in MIDI note numbers(1), which compute the momontes on an exponential spectrum.
+
+ARGUMENT:: power
+	This flag sets the scaling of the magnitudes in the moment calculation. It uses either its amplitude (0, by default) or its power (1).
+
 ARGUMENT:: windowSize
 	The window size. As spectral shape estimation relies on spectral frames, we need to decide what precision we give it spectrally and temporally, in line with Gabor Uncertainty principles. http://www.subsurfwiki.org/wiki/Gabor_uncertainty