diff --git a/release-packaging/Classes/FluidBufPitch.sc b/release-packaging/Classes/FluidBufPitch.sc
index d0ad4ce..9bff1f8 100644
--- a/release-packaging/Classes/FluidBufPitch.sc
+++ b/release-packaging/Classes/FluidBufPitch.sc
@@ -1,5 +1,5 @@
 FluidBufPitch{
-		*process { arg server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  algorithm = 2, windowSize = 1024, hopSize = -1, fftSize = -1, action;
+		*process { arg server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features,  algorithm = 2, minFreq = 20, maxFreq = 10000, unit = 0, windowSize = 1024, hopSize = -1, fftSize = -1, action;
 
 		var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
 
@@ -15,7 +15,7 @@ FluidBufPitch{
 		//whatever has been passed in language-side (e.g maxFFTSize still exists as a parameter for the server plugin, but makes less sense here: it just needs to be set to a legal value)
 
 		forkIfNeeded{
-			server.sendMsg(\cmd, \BufPitch, source, startFrame, numFrames, startChan, numChans, features, algorithm, windowSize, hopSize, fftSize, maxFFTSize);
+			server.sendMsg(\cmd, \BufPitch, source, startFrame, numFrames, startChan, numChans, features, algorithm, minFreq, maxFreq, unit, windowSize, hopSize, fftSize, maxFFTSize);
 			server.sync;
 			features = server.cachedBufferAt(features); features.updateInfo; server.sync;
 			action.value(features);
diff --git a/release-packaging/Classes/FluidPitch.sc b/release-packaging/Classes/FluidPitch.sc
index 66bdfb9..b56eba7 100644
--- a/release-packaging/Classes/FluidPitch.sc
+++ b/release-packaging/Classes/FluidPitch.sc
@@ -1,7 +1,7 @@
 FluidPitch : MultiOutUGen {
 
-	*kr { arg in = 0, algorithm = 2, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384;
-		^this.multiNew('control', in.asAudioRateInput(this), algorithm, windowSize, hopSize, fftSize, maxFFTSize);
+	*kr { arg in = 0, algorithm = 2, minFreq = 20, maxFreq = 10000, unit = 0, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384;
+		^this.multiNew('control', in.asAudioRateInput(this), algorithm, minFreq, maxFreq, unit, windowSize, hopSize, fftSize, maxFFTSize);
 	}
 
 	init {arg ...theInputs;
diff --git a/release-packaging/HelpSource/Classes/FluidBufPitch.schelp b/release-packaging/HelpSource/Classes/FluidBufPitch.schelp
index accd403..bf630c2 100644
--- a/release-packaging/HelpSource/Classes/FluidBufPitch.schelp
+++ b/release-packaging/HelpSource/Classes/FluidBufPitch.schelp
@@ -43,6 +43,15 @@ ARGUMENT:: algorithm
 	## 2 || YinFFT: Implements the frequency domain version of the YIN algorithm, as described in FOOTNOTE::P. M. Brossier, "Automatic Annotation of Musical Audio for Interactive Applications.” QMUL, London, UK, 2007. :: See also https://essentia.upf.edu/documentation/reference/streaming_PitchYinFFT.html
 	::
 
+ARGUMENT:: minFreq
+The minimum frequency that the algorithm will search for an estimated fundamental. This sets the lowest value that will be generated.
+
+ARGUMENT:: maxFreq
+The maximum frequency that the algorithm will search for an estimated fundamental. This sets the highest value that will be generated.
+
+ARGUMENT:: unit
+The unit of the estimated value. The default of 0 is in Hz. A value of 1 will convert to MIDI note values.
+
 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
 
@@ -105,11 +114,11 @@ b.play
 // create a buffer as destinations
 c = Buffer.new(s);
 
-//run the process on them
+//run the process on them, with limited bandwidth and units in MIDI notes
 (
 Routine{
     t = Main.elapsedTime;
-    FluidBufPitch.process(s, b, features: c);
+    FluidBufPitch.process(s, b, features: c, minFreq:200, maxFreq:2000, unit:1);
     (Main.elapsedTime - t).postln;
 }.play
 )
diff --git a/release-packaging/HelpSource/Classes/FluidNMFFilter.schelp b/release-packaging/HelpSource/Classes/FluidNMFFilter.schelp
index 0493d38..36e181e 100644
--- a/release-packaging/HelpSource/Classes/FluidNMFFilter.schelp
+++ b/release-packaging/HelpSource/Classes/FluidNMFFilter.schelp
@@ -224,5 +224,5 @@ FluidBufNMF.process(s, d, bases:g, windowSize:2048, components:3);
 f.set(\bases, g.bufnum)
 
 //free
-f.free; e.free;
+f.free; e.free; b.free; c.free; d.free; g.free;
 ::
diff --git a/release-packaging/HelpSource/Classes/FluidPitch.schelp b/release-packaging/HelpSource/Classes/FluidPitch.schelp
index af6a0f1..f8cb7e6 100644
--- a/release-packaging/HelpSource/Classes/FluidPitch.schelp
+++ b/release-packaging/HelpSource/Classes/FluidPitch.schelp
@@ -24,6 +24,15 @@ ARGUMENT:: algorithm
 	## 2 || YinFFT: Implements the frequency domain version of the YIN algorithm, as described in FOOTNOTE::P. M. Brossier, "Automatic Annotation of Musical Audio for Interactive Applications.” QMUL, London, UK, 2007. :: See also https://essentia.upf.edu/documentation/reference/streaming_PitchYinFFT.html
 	::
 
+ARGUMENT:: minFreq
+The minimum frequency that the algorithm will search for an estimated fundamental. This sets the lowest value that will be generated.
+
+ARGUMENT:: maxFreq
+The maximum frequency that the algorithm will search for an estimated fundamental. This sets the highest value that will be generated.
+
+ARGUMENT:: unit
+The unit of the estimated value. The default of 0 is in Hz. A value of 1 will convert to MIDI note values.
+
 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