diff --git a/release-packaging/Classes/FluidBufOnsetSlice.sc b/release-packaging/Classes/FluidBufOnsetSlice.sc
index d7bbcac..4e3304c 100644
--- a/release-packaging/Classes/FluidBufOnsetSlice.sc
+++ b/release-packaging/Classes/FluidBufOnsetSlice.sc
@@ -1,5 +1,5 @@
 FluidBufOnsetSlice{
-		*process { arg server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, indices, function = 0, threshold = 0.1, minSliceLength = 2, filterSize = 5, frameDelta = 0, windowSize = 1024, hopSize = -1, fftSize = -1, action;
+		*process { arg server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, indices, metric = 0, threshold = 0.5, minSliceLength = 2, filterSize = 5, frameDelta = 0, windowSize = 1024, hopSize = -1, fftSize = -1, action;
 
 		var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
 
@@ -15,7 +15,7 @@ FluidBufOnsetSlice{
 		//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, \BufOnsetSlice, source, startFrame, numFrames, startChan, numChans, indices, function, threshold, minSliceLength, filterSize, frameDelta, windowSize, hopSize, fftSize, maxFFTSize);
+			server.sendMsg(\cmd, \BufOnsetSlice, source, startFrame, numFrames, startChan, numChans, indices, metric, threshold, minSliceLength, filterSize, frameDelta, windowSize, hopSize, fftSize, maxFFTSize);
 			server.sync;
 			indices = server.cachedBufferAt(indices); indices.updateInfo; server.sync;
 			action.value(indices);
diff --git a/release-packaging/Classes/FluidOnsetSlice.sc b/release-packaging/Classes/FluidOnsetSlice.sc
index 2bedb64..2ecbb51 100644
--- a/release-packaging/Classes/FluidOnsetSlice.sc
+++ b/release-packaging/Classes/FluidOnsetSlice.sc
@@ -1,6 +1,6 @@
 FluidOnsetSlice : UGen {
-	*ar { arg in = 0, function = 0, threshold = 0.5, minSliceLength = 2, filterSize = 5, frameDelta = 0, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384;
-		^this.multiNew('audio', in.asAudioRateInput(this), function, threshold, minSliceLength, filterSize, frameDelta, windowSize, hopSize, fftSize, maxFFTSize)
+	*ar { arg in = 0, metric = 0, threshold = 0.5, minSliceLength = 2, filterSize = 5, frameDelta = 0, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384;
+		^this.multiNew('audio', in.asAudioRateInput(this), metric, threshold, minSliceLength, filterSize, frameDelta, windowSize, hopSize, fftSize, maxFFTSize)
 	}
 	checkInputs {
 		if(inputs.at(9).rate != 'scalar') {
diff --git a/release-packaging/HelpSource/Classes/FluidBufOnsetSlice.schelp b/release-packaging/HelpSource/Classes/FluidBufOnsetSlice.schelp
index ecd692f..09389f7 100644
--- a/release-packaging/HelpSource/Classes/FluidBufOnsetSlice.schelp
+++ b/release-packaging/HelpSource/Classes/FluidBufOnsetSlice.schelp
@@ -4,7 +4,7 @@ CATEGORIES:: Libraries>FluidDecomposition
 RELATED:: Guides/FluCoMa, Guides/FluidDecomposition
 
 DESCRIPTION::
-This class implements many spectral-based onset detection functions, most of them taken from the literature. (http://www.dafx.ca/proceedings/papers/p_133.pdf) Some are already available in SuperCollider's LINK::Classes/Onsets:: object yet not as offline processes. It is part of the Fluid Decomposition Toolkit of the FluCoMa project.footnote::This was made possible thanks to the FluCoMa project ( http://www.flucoma.org/ ) funded by the European Research Council ( https://erc.europa.eu/ ) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 725899).::
+This class implements many spectral-based onset detection metrics, most of them taken from the literature. (http://www.dafx.ca/proceedings/papers/p_133.pdf) Some are already available in SuperCollider's LINK::Classes/Onsets:: object yet not as offline processes. It is part of the Fluid Decomposition Toolkit of the FluCoMa project.footnote::This was made possible thanks to the FluCoMa project ( http://www.flucoma.org/ ) funded by the European Research Council ( https://erc.europa.eu/ ) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 725899).::
 
 The process will return a buffer which contains indices (in sample) of estimated starting points of different slices.
 
@@ -34,8 +34,8 @@ ARGUMENT:: numChans
 ARGUMENT:: indices
 	The index of the buffer where the indices (in sample) of the estimated starting points of slices will be written. The first and last points are always the boundary points of the analysis.
 
-ARGUMENT:: function
-	The function used to derive a difference curve between spectral frames. It can be any of the following:
+ARGUMENT:: metric
+	The metric used to derive a difference curve between spectral frames. It can be any of the following:
 		TABLE::
 		##0 || Energy || thresholds on (sum of squares of magnitudes / nBins) (like Onsets \power)
 		##1 || HFC || thresholds on (sum of (squared magnitudes * binNum) / nBins)
@@ -50,7 +50,7 @@ ARGUMENT:: function
 		::
 
 ARGUMENT:: threshold
-The thresholding of a new slice. Value ranges are different for each function, from 0 upwards.
+The thresholding of a new slice. Value ranges are different for each metric, from 0 upwards.
 
 ARGUMENT:: minSliceLength
 	The minimum duration of a slice in number of hopSize.
@@ -59,7 +59,7 @@ ARGUMENT:: filterSize
 	The size of a smoothing filter that is applied on the novelty curve. A larger filter filter size allows for cleaner cuts on very sharp changes.
 
 ARGUMENT:: frameDelta
-		For certain functions (HFC, SpectralFlux, MKL, Cosine), the distance does not have to be computed between consecutive frames. By default (0) it is, otherwise this sets the distane between the comparison window in samples.
+		For certain metrics (HFC, SpectralFlux, MKL, Cosine), the distance does not have to be computed between consecutive frames. By default (0) it is, otherwise this sets the distane between the comparison window in samples.
 
 ARGUMENT:: windowSize
 	The window size. As spectral differencing 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
@@ -71,7 +71,7 @@ ARGUMENT:: fftSize
 	The inner FFT/IFFT size. It should be at least 4 samples long, at least the size of the window, and a power of 2. Making it larger allows an oversampling of the spectral precision. The -1 default value will default to windowSize.
 
 ARGUMENT:: action
-		A Function to be evaluated once the offline process has finished and indices instance variables have been updated on the client side. The function will be passed indices as an argument.
+		A Function to be evaluated once the offline process has finished and indices instance variables have been updated on the client side. The metric will be passed indices as an argument.
 
 RETURNS::
 	Nothing, as the various destination buffers are declared in the function call.
diff --git a/release-packaging/HelpSource/Classes/FluidOnsetSlice.schelp b/release-packaging/HelpSource/Classes/FluidOnsetSlice.schelp
index 449c05f..1918be3 100644
--- a/release-packaging/HelpSource/Classes/FluidOnsetSlice.schelp
+++ b/release-packaging/HelpSource/Classes/FluidOnsetSlice.schelp
@@ -4,7 +4,7 @@ CATEGORIES:: Libraries>FluidDecomposition
 RELATED:: Guides/FluCoMa, Guides/FluidDecomposition
 
 DESCRIPTION::
-This class implements many spectral based onset detection functions, most of them taken from the literature. (http://www.dafx.ca/proceedings/papers/p_133.pdf) Some are already available in SuperCollider's LINK::Classes/Onsets:: object. It is part of the Fluid Decomposition Toolkit of the FluCoMa project.footnote::This was made possible thanks to the FluCoMa project ( http://www.flucoma.org/ ) funded by the European Research Council ( https://erc.europa.eu/ ) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 725899).::
+This class implements many spectral based onset detection metrics, most of them taken from the literature. (http://www.dafx.ca/proceedings/papers/p_133.pdf) Some are already available in SuperCollider's LINK::Classes/Onsets:: object. It is part of the Fluid Decomposition Toolkit of the FluCoMa project.footnote::This was made possible thanks to the FluCoMa project ( http://www.flucoma.org/ ) funded by the European Research Council ( https://erc.europa.eu/ ) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 725899).::
 
 The process will return an audio steam with sample-long impulses at estimated starting points of the different slices.
 
@@ -17,8 +17,8 @@ METHOD:: ar
 ARGUMENT:: in
 	The audio to be processed.
 
-ARGUMENT:: function
-	The function used to derive a difference curve between spectral frames. It can be any of the following:
+ARGUMENT:: metric
+	The metric used to derive a difference curve between spectral frames. It can be any of the following:
 		TABLE::
 		##0 || Energy || thresholds on (sum of squares of magnitudes / nBins) (like Onsets \power)
 		##1 || HFC || thresholds on (sum of (squared magnitudes * binNum) / nBins)
@@ -33,7 +33,7 @@ ARGUMENT:: function
 		::
 
 ARGUMENT:: threshold
-The thresholding of a new slice. Value ranges are different for each function, from 0 upwards.
+The thresholding of a new slice. Value ranges are different for each metric, from 0 upwards.
 
 ARGUMENT:: minSliceLength
 	The minimum duration of a slice in number of hopSize.
@@ -42,7 +42,7 @@ ARGUMENT:: filterSize
 	The size of a smoothing filter that is applied on the novelty curve. A larger filter filter size allows for cleaner cuts on very sharp changes.
 
 ARGUMENT:: frameDelta
-		For certain functions (HFC, SpectralFlux, MKL, Cosine), the distance does not have to be computed between consecutive frames. By default (0) it is, otherwise this sets the distane between the comparison window in samples.
+		For certain metrics (HFC, SpectralFlux, MKL, Cosine), the distance does not have to be computed between consecutive frames. By default (0) it is, otherwise this sets the distane between the comparison window in samples.
 
 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