diff --git a/.DS_Store b/.DS_Store
index ca1e61b..dd306f7 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/App/app.mlapp b/App/app.mlapp
index 9473056..85352a0 100644
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diff --git a/src/.DS_Store b/src/.DS_Store
index 14624d2..a262e39 100644
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diff --git a/src/DarellAmplitudeEnvelope.m b/src/AmpEnvelope/DarellAmplitudeEnvelope.m
similarity index 100%
rename from src/DarellAmplitudeEnvelope.m
rename to src/AmpEnvelope/DarellAmplitudeEnvelope.m
diff --git a/src/DarellbandpassFilter.m b/src/Filter/DarellbandpassFilter.m
similarity index 100%
rename from src/DarellbandpassFilter.m
rename to src/Filter/DarellbandpassFilter.m
diff --git a/src/amplifyFreqRange.m b/src/Filter/amplifyFreqRange.m
similarity index 100%
rename from src/amplifyFreqRange.m
rename to src/Filter/amplifyFreqRange.m
diff --git a/src/bandreject_filter.m b/src/Filter/bandreject_filter.m
similarity index 100%
rename from src/bandreject_filter.m
rename to src/Filter/bandreject_filter.m
diff --git a/src/epic_effect_schluep.m b/src/Filter/epic_effect_schluep.m
similarity index 100%
rename from src/epic_effect_schluep.m
rename to src/Filter/epic_effect_schluep.m
diff --git a/src/muffled_effect_schluep.m b/src/Filter/muffled_effect_schluep.m
similarity index 100%
rename from src/muffled_effect_schluep.m
rename to src/Filter/muffled_effect_schluep.m
diff --git a/src/seperate_prevalent_schluep.m b/src/Filter/seperate_prevalent_schluep.m
similarity index 100%
rename from src/seperate_prevalent_schluep.m
rename to src/Filter/seperate_prevalent_schluep.m
diff --git a/src/generate_halfCircles.m b/src/Generators/generate_halfCircles.m
similarity index 100%
rename from src/generate_halfCircles.m
rename to src/Generators/generate_halfCircles.m
diff --git a/src/generate_sawtooth.m b/src/Generators/generate_sawtooth.m
similarity index 100%
rename from src/generate_sawtooth.m
rename to src/Generators/generate_sawtooth.m
diff --git a/src/generate_sine.m b/src/Generators/generate_sine.m
similarity index 100%
rename from src/generate_sine.m
rename to src/Generators/generate_sine.m
diff --git a/src/generate_square.m b/src/Generators/generate_square.m
similarity index 100%
rename from src/generate_square.m
rename to src/Generators/generate_square.m
diff --git a/src/generate_triangle.m b/src/Generators/generate_triangle.m
similarity index 100%
rename from src/generate_triangle.m
rename to src/Generators/generate_triangle.m
diff --git a/src/generate_white.m b/src/Generators/generate_white.m
similarity index 100%
rename from src/generate_white.m
rename to src/Generators/generate_white.m
diff --git a/src/Helper/.DS_Store b/src/Helper/.DS_Store
new file mode 100644
index 0000000..5008ddf
Binary files /dev/null and b/src/Helper/.DS_Store differ
diff --git a/src/Equalizer_Darell.m b/src/Helper/Equalizer_Darell.m
similarity index 100%
rename from src/Equalizer_Darell.m
rename to src/Helper/Equalizer_Darell.m
diff --git a/src/MIDIDarell.m b/src/Helper/MIDIDarell.m
similarity index 100%
rename from src/MIDIDarell.m
rename to src/Helper/MIDIDarell.m
diff --git a/src/amplify.m b/src/Helper/amplify.m
similarity index 100%
rename from src/amplify.m
rename to src/Helper/amplify.m
diff --git a/src/play_continuous.m b/src/Helper/play_continuous.m
similarity index 100%
rename from src/play_continuous.m
rename to src/Helper/play_continuous.m
diff --git a/src/play_wave.m b/src/Helper/play_wave.m
similarity index 100%
rename from src/play_wave.m
rename to src/Helper/play_wave.m
diff --git a/src/plot_wave.m b/src/Helper/plot_wave.m
similarity index 100%
rename from src/plot_wave.m
rename to src/Helper/plot_wave.m
diff --git a/src/reverse.m b/src/Helper/reverse.m
similarity index 100%
rename from src/reverse.m
rename to src/Helper/reverse.m
diff --git a/src/lfo_sawtooth.m b/src/LFO/lfo_sawtooth.m
similarity index 100%
rename from src/lfo_sawtooth.m
rename to src/LFO/lfo_sawtooth.m
diff --git a/src/lfo_sine.m b/src/LFO/lfo_sine.m
similarity index 100%
rename from src/lfo_sine.m
rename to src/LFO/lfo_sine.m
diff --git a/src/NotWorking/.DS_Store b/src/NotWorking/.DS_Store
new file mode 100644
index 0000000..5008ddf
Binary files /dev/null and b/src/NotWorking/.DS_Store differ
diff --git a/src/Daniel_Doan_convolution.m b/src/NotWorking/Daniel_Doan_convolution.m
similarity index 100%
rename from src/Daniel_Doan_convolution.m
rename to src/NotWorking/Daniel_Doan_convolution.m
diff --git a/src/add_sine.m b/src/NotWorking/add_sine.m
similarity index 100%
rename from src/add_sine.m
rename to src/NotWorking/add_sine.m
diff --git a/src/fade_in.m b/src/NotWorking/fade_in.m
similarity index 100%
rename from src/fade_in.m
rename to src/NotWorking/fade_in.m
diff --git a/src/fade_out.m b/src/NotWorking/fade_out.m
similarity index 100%
rename from src/fade_out.m
rename to src/NotWorking/fade_out.m
diff --git a/src/Meghaj_Echo.m b/src/Offset/Meghaj_Echo.m
similarity index 100%
rename from src/Meghaj_Echo.m
rename to src/Offset/Meghaj_Echo.m
diff --git a/src/Petha_Hsu_PitchOffset.m b/src/Offset/Petha_Hsu_PitchOffset.m
similarity index 100%
rename from src/Petha_Hsu_PitchOffset.m
rename to src/Offset/Petha_Hsu_PitchOffset.m
diff --git a/src/DarellAnneLinearPitchEnvelope.m b/src/PitchEnvelope/DarellAnneLinearPitchEnvelope.m
similarity index 100%
rename from src/DarellAnneLinearPitchEnvelope.m
rename to src/PitchEnvelope/DarellAnneLinearPitchEnvelope.m
diff --git a/src/DarellAnnePitchEnvelope.m b/src/PitchEnvelope/DarellAnnePitchEnvelope.m
similarity index 100%
rename from src/DarellAnnePitchEnvelope.m
rename to src/PitchEnvelope/DarellAnnePitchEnvelope.m
diff --git a/src/AmpEnvelopeSelect.m b/src/Select/AmpEnvelopeSelect.m
similarity index 100%
rename from src/AmpEnvelopeSelect.m
rename to src/Select/AmpEnvelopeSelect.m
diff --git a/src/Select/FilterSelect.m b/src/Select/FilterSelect.m
new file mode 100644
index 0000000..659a0d1
--- /dev/null
+++ b/src/Select/FilterSelect.m
@@ -0,0 +1,26 @@
+%Written by Darell 
+
+% CONTRIBUTORS:
+% Person1: Darell
+
+% DOCUMENTATION:
+%Pass-through function used by app
+
+function output = FilterSelect(input,Fs,LOW,MED,HIGH,number)
+    if(number == "Option 1")
+        output = DarellbandpassFilter(input,Fs,LOW,MED,HIGH);
+    elseif(number == "Option 2")
+        output = amplifyFreqRange(input, Fs, LOW, MED, HIGH);
+    elseif(number == "Option 3")
+        output = epic_effect_schluep(input, Fs, LOW, MED, HIGH);
+    elseif(number == "Option 4")
+        output = muffled_effect_schluep(input, Fs, LOW, MED, HIGH);
+    elseif(number == "Option 5")
+        output = seperate_prevalent_schluep(input, Fs, LOW, MED, HIGH);
+    elseif(number == "Option 6")
+        output = bandreject_filter(input, Fs, LOW, HIGH);
+    else
+        output = input;
+    end
+end 
+
diff --git a/src/Select/LFOSelect.m b/src/Select/LFOSelect.m
new file mode 100644
index 0000000..fbe132e
--- /dev/null
+++ b/src/Select/LFOSelect.m
@@ -0,0 +1,20 @@
+%Written by Darell 
+
+% CONTRIBUTORS:
+% Person1: Darell
+
+% DOCUMENTATION:
+%Pass-through function used by app
+
+function output = LFOSelect(amplitude, frequency, phase, fs, duration, input,number)
+%UNTITLED Summary of this function goes here
+%   Detailed explanation goes here
+    if(number == "Option 1")
+        output = lfo_sawtooth(amplitude, frequency, phase, fs, duration, input);
+    elseif(number == "Option 2")
+        output = lfo_sine(amplitude, frequency, phase, fs, duration, input);
+    else
+        output = input;
+    end
+end
+
diff --git a/src/FilterSelect.m b/src/Select/OffsetSelect.m
similarity index 54%
rename from src/FilterSelect.m
rename to src/Select/OffsetSelect.m
index cc37307..a8b982c 100644
--- a/src/FilterSelect.m
+++ b/src/Select/OffsetSelect.m
@@ -6,13 +6,14 @@
 % DOCUMENTATION:
 %Pass-through function used by app
 
-function output = FilterSelect(input,Fs,LOW,MED,HIGH,number)
+function output = OffsetSelect(input,value,number)
     if(number == "Option 1")
-        output = DarellbandpassFilter(input,Fs,LOW,MED,HIGH);
+        output =  Meghaj_Echo(input, value);
     elseif(number == "Option 2")
-        output = amplifyFreqRange(input, Fs, LOW, MED, HIGH);
+        output = Petha_Hsu_PitchOffset(input, value);
     else
         output = input;
     end
 end 
 
+
diff --git a/src/PitchEnvelopeSelect.m b/src/Select/PitchEnvelopeSelect.m
similarity index 100%
rename from src/PitchEnvelopeSelect.m
rename to src/Select/PitchEnvelopeSelect.m
diff --git a/src/SoundGeneratorSelect.m b/src/Select/SoundGeneratorSelect.m
similarity index 80%
rename from src/SoundGeneratorSelect.m
rename to src/Select/SoundGeneratorSelect.m
index df0c711..3fe715a 100644
--- a/src/SoundGeneratorSelect.m
+++ b/src/Select/SoundGeneratorSelect.m
@@ -16,7 +16,9 @@ function output = SoundGeneratorSelect(amplitude, frequency, phase, fs, duration
     elseif(number == "Option 4")
         output = generate_sawtooth(amplitude, frequency, phase, fs, duration, duty);
     elseif(number == "Option 5")
-        output = generate_white(amplitude, frequency, phase, fs, duration, duty);
+        output = generate_white(amplitude, fs, duration);
+    elseif(number == "Option 6")
+        output = generate_halfCircles(amplitude, frequency, phase, fs, duration, duty);
     else
         output = 0;
     end